Planets: Celestial bodies orbiting around the sun or other stars.Earth (Planet): Planet that is the third in order from the sun. It is one of the four inner or terrestrial planets of the SOLAR SYSTEM.Evolution, Planetary: Creation and development of bodies within solar systems, includes study of early planetary geology.Astronomy: The science concerned with celestial bodies and the observation and interpretation of the radiation received in the vicinity of the earth from the component parts of the universe (McGraw Hill Dictionary of Scientific and Technical Terms, 5th ed)Stars, Celestial: Large bodies consisting of self-luminous gas held together by their own gravity. (From McGraw Hill Dictionary of Scientific and Technical Terms, 6th ed)Exobiology: The interdisciplinary science that studies evolutionary biology, including the origin and evolution of the major elements required for life, their processing in the interstellar medium and in protostellar systems. This field also includes the study of chemical evolution and the subsequent interactions between evolving biota and planetary evolution as well as the field of biology that deals with the study of extraterrestrial life.Extraterrestrial Environment: The environment outside the earth or its atmosphere. The environment may refer to a closed cabin (such as a space shuttle or space station) or to space itself, the moon, or other planets.Astronomical Phenomena: Aggregates of matter in outer space, such as stars, planets, comets, etc. and the properties and processes they undergo.Minor Planets: Small solar system planetary bodies including asteroids. Most asteroids are found within the gap lying between the orbits of Mars and Jupiter.Mercury (Planet): The first planet in order from the sun. It has no known natural satellites. It is one of the four inner or terrestrial planets of the solar system.Solar System: The group of celestial bodies, including the EARTH, orbiting around and gravitationally bound by the sun. It includes eight planets, one minor planet, and 34 natural satellites, more than 1,000 observed comets, and thousands of lesser bodies known as MINOR PLANETS (asteroids) and METEOROIDS. (From Academic American Encyclopedia, 1983)Neptune: The eighth planet in order from the sun. It is one of the five outer planets of the solar system. Its two natural satellites are Nereid and Triton.Life: The state that distinguishes organisms from inorganic matter, manifested by growth, metabolism, reproduction, and adaptation. It includes the course of existence, the sum of experiences, the mode of existing, or the fact of being. Over the centuries inquiries into the nature of life have crossed the boundaries from philosophy to biology, forensic medicine, anthropology, etc., in creative as well as scientific literature. (Random House Unabridged Dictionary, 2d ed; Dr. James H. Cassedy, NLM History of Medicine Division)Uranus: The seventh planet in order from the sun. It is one of the five outer planets of the solar system. It has five known natural satellites.Meteoroids: Any solid objects moving in interplanetary space that are smaller than a planet or asteroid but larger than a molecule. Meteorites are any meteoroid that has fallen to a planetary surface. (From McGraw-Hill Dictionary of Scientific and Technical Terms, 4th ed)Moon: The natural satellite of the planet Earth. It includes the lunar cycles or phases, the lunar month, lunar landscapes, geography, and soil.Atmosphere: The gaseous envelope surrounding a planet or similar body. (From Random House Unabridged Dictionary, 2d ed)Mars: The fourth planet in order from the sun. Its two natural satellites are Deimos and Phobos. It is one of the four inner or terrestrial planets of the solar system.Tidal Waves: Water waves caused by the gravitational interactions between the EARTH; MOON; and SUN.Pluto: The ninth planet in order from the sun. It is one of the five outer planets of the solar system. Its only natural satellite is Charon.Jupiter: The fifth planet in order from the sun. It is one of the five outer planets of the solar system. Its sixteen natural satellites include Callisto, Europa, Ganymede, and Io.Ice: The solid substance formed by the FREEZING of water.Space Simulation: An environment simulating one or more parameters of the space environment, applied in testing space systems or components. Often, a closed chamber is used, capable of approximating the vacuum and normal environments of space. (From NASA Thesaurus, 1988) This also includes simulated EXTRAVEHICULAR ACTIVITY studies in atmosphere exposure chambers or water tanks.Solar Activity: Any type of variation in the appearance of energy output of the sun. (NASA Thesaurus, 1994)Biogenesis: The origin of life. It includes studies of the potential basis for life in organic compounds but excludes studies of the development of altered forms of life through mutation and natural selection, which is BIOLOGICAL EVOLUTION.Cosmic Radiation: High-energy radiation or particles from extraterrestrial space that strike the earth, its atmosphere, or spacecraft and may create secondary radiation as a result of collisions with the atmosphere or spacecraft.Spacecraft: Devices, manned and unmanned, which are designed to be placed into an orbit about the Earth or into a trajectory to another celestial body. (NASA Thesaurus, 1988)Countercurrent Distribution: A method of separation of two or more substances by repeated distribution between two immiscible liquid phases that move past each other in opposite directions. It is a form of liquid-liquid chromatography. (Stedman, 25th ed)Geology: The science of the earth and other celestial bodies and their history as recorded in the rocks. It includes the study of geologic processes of an area such as rock formations, weathering and erosion, and sedimentation. (From McGraw-Hill Dictionary of Scientific and Technical Terms, 6th ed)Evolution, Chemical: Chemical and physical transformation of the biogenic elements from their nucleosynthesis in stars to their incorporation and subsequent modification in planetary bodies and terrestrial biochemistry. It includes the mechanism of incorporation of biogenic elements into complex molecules and molecular systems, leading up to the origin of life.Physics: The study of those aspects of energy and matter in terms of elementary principles and laws. (From McGraw-Hill Dictionary of Scientific and Technical Terms, 6th ed)AstrologyEncyclopedias as Topic: Works containing information articles on subjects in every field of knowledge, usually arranged in alphabetical order, or a similar work limited to a special field or subject. (From The ALA Glossary of Library and Information Science, 1983)Saturn: The sixth planet in order from the sun. It is one of the five outer planets of the solar system. Its twelve natural satellites include Phoebe and Titan.Telescopes: Instruments used to observe distant objects.ArizonaUnited States National Aeronautics and Space Administration: An independent Federal agency established in 1958. It conducts research for the solution of problems of flight within and outside the Earth's atmosphere and develops, constructs, tests, and operates aeronautical and space vehicles. (From U.S. Government Manual, 1993)HydrocarbonsPhotometry: Measurement of the various properties of light.Interior Design and Furnishings: The planning of the furnishings and decorations of an architectural interior.Industry: Any enterprise centered on the processing, assembly, production, or marketing of a line of products, services, commodities, or merchandise, in a particular field often named after its principal product. Examples include the automobile, fishing, music, publishing, insurance, and textile industries.Necrobiotic Xanthogranuloma: A cutaneous necrobiotic disorder characterized by firm, yellow plaques or nodules, often in a periorbital distribution. It is often accompanied by an elevated ERYTHROCYTE SEDIMENTATION RATE; LEUKOPENIA; and MONOCLONAL GAMMOPATHY (IgG-kappa type) and systemic involvement.Specific Gravity: The ratio of the density of a material to the density of some standard material, such as water or air, at a specified temperature.LondonSpace Flight: Travel beyond the earth's atmosphere.IndianaAirports: Terminal facilities used for aircraft takeoff and landing and including facilities for handling passengers. (from McGraw-Hill Dictionary of Scientific and Technical Terms, 6th ed.)International Cooperation: The interaction of persons or groups of persons representing various nations in the pursuit of a common goal or interest.Ecosystem: A functional system which includes the organisms of a natural community together with their environment. (McGraw Hill Dictionary of Scientific and Technical Terms, 4th ed)BaltimoreMedicine in Literature: Written or other literary works whose subject matter is medical or about the profession of medicine and related areas.Jervell-Lange Nielsen Syndrome: A form of long QT syndrome that is associated with congenital deafness. It is characterized by abnormal cardioelectrophysiology involving the VOLTAGE-GATED POTASSIUM CHANNEL. It results from mutation of KCNQ1 gene (Subtype 1 or JLN1) or the KCNE1 gene (Subtype 2 or JLN2).Drama: A composition in prose or verse presenting in dialogue or pantomime a story involving various characters, usually intended to be acted on a stage and to be regarded as a form of entertainment. (From Random House Unabridged Dictionary, 2d ed)Health Fairs: Community health education events focused on prevention of disease and promotion of health through audiovisual exhibits.

In search of planets and life around other stars. (1/47)

The discovery of over a dozen low-mass companions to nearby stars has intensified scientific and public interest in a longer term search for habitable planets like our own. However, the nature of the detected companions, and in particular whether they resemble Jupiter in properties and origin, remains undetermined.  (+info)

Nebular and auroral emission lines of [Cl III] in the optical spectra of planetary nebulae. (2/47)

Electron impact excitation rates in Cl III, recently determined with the R-matrix code, are used to calculate electron temperature (T(e)) and density (N(e)) emission line ratios involving both the nebular (5517.7, 5537.9 A) and auroral (8433.9, 8480.9, 8500.0 A) transitions. A comparison of these results with observational data for a sample of planetary nebulae, obtained with the Hamilton Echelle Spectrograph on the 3-m Shane Telescope, reveals that the R(1) = I(5518 A)/I(5538 A) intensity ratio provides estimates of N(e) in excellent agreement with the values derived from other line ratios in the echelle spectra. This agreement indicates that R(1) is a reliable density diagnostic for planetary nebulae, and it also provides observational support for the accuracy of the atomic data adopted in the line ratio calculations. However the [Cl iii] 8433.9 A line is found to be frequently blended with a weak telluric emission feature, although in those instances when the [Cl iii] intensity may be reliably measured, it provides accurate determinations of T(e) when ratioed against the sum of the 5518 and 5538 A line fluxes. Similarly, the 8500.0 A line, previously believed to be free of contamination by the Earth's atmosphere, is also shown to be generally blended with a weak telluric emission feature. The [Cl iii] transition at 8480.9 A is found to be blended with the He i 8480.7 A line, except in planetary nebulae that show a relatively weak He i spectrum, where it also provides reliable estimates of T(e) when ratioed against the nebular lines. Finally, the diagnostic potential of the near-UV [Cl iii] lines at 3344 and 3354 A is briefly discussed.  (+info)

The occurrence of Jovian planets and the habitability of planetary systems. (3/47)

Planets of mass comparable to or larger than Jupiter's have been detected around over 50 stars, and for one such object a definitive test of its nature as a gas giant has been accomplished with data from an observed planetary transit. By virtue of their strong gravitational pull, giant planets define the dynamical and collisional environment within which terrestrial planets form. In our solar system, the position and timing of the formation of Jupiter determined the amount and source of the volatiles from which Earth's oceans and the source elements for life were derived. This paper reviews and brings together diverse observational and modeling results to infer the frequency and distribution of giant planets around solar-type stars and to assess implications for the habitability of terrestrial planets.  (+info)

Planetary exploration in the time of astrobiology: protecting against biological contamination. (4/47)

These are intriguing times in the exploration of other solar-system bodies. Continuing discoveries about life on Earth and the return of data suggesting the presence of liquid water environments on or under the surfaces of other planets and moons have combined to suggest the significant possibility that extraterrestrial life may exist in this solar system. Similarly, not since the Viking missions of the mid-1970s has there been as great an appreciation for the potential for Earth life to contaminate other worlds. Current plans for the exploration of the solar system include constraints intended to prevent biological contamination from being spread by solar-system exploration missions.  (+info)

Mass spectrometry in the U.S. space program: past, present, and future. (5/47)

Recent years have witnessed significant progress on the miniaturization of mass spectrometers for a variety of field applications. This article describes the development and application of mass spectrometry (MS) instrumentation to support of goals of the U.S. space program. Its main focus is on the two most common space-related applications of MS: studying the composition of planetary atmospheres and monitoring air quality on manned space missions. Both sets of applications present special requirements in terms of analytical performance (sensitivity, selectivity, speed, etc.), logistical considerations (space, weight, and power requirements), and deployment in perhaps the harshest of all possible environments (space). The MS instruments deployed on the Pioneer Venus and Mars Viking Lander missions are reviewed for the purposes of illustrating the unique features of the sample introduction systems, mass analyzers, and vacuum systems, and for presenting their specifications which are impressive even by today's standards. The various approaches for monitoring volatile organic compounds (VOCs) in cabin atmospheres are also reviewed. In the past, ground-based GC/MS instruments have been used to identify and quantify VOCs in archival samples collected during the Mercury, Apollo, Skylab, Space Shuttle, and Mir missions. Some of the data from the more recent missions are provided to illustrate the composition data obtained and to underscore the need for instrumentation to perform such monitoring in situ. Lastly, the development of two emerging technologies, Direct Sampling Ion Trap Mass Spectrometry (DSITMS) and GC/Ion Mobility Spectrometry (GC/IMS), will be discussed to illustrate their potential utility for future missions.  (+info)

Gas chromatographic separation of nitrogen, oxygen, argon, and carbon monoxide using custom-made porous polymers from high purity divinylbenzene. (6/47)

Existing porous polymers were surveyed for their ability to separate the subject gases. Certain products that showed more promise than others were synthesized and the existing synthetic procedures studied and modified to produce new polymers with enhanced ability to separate the subject gases. Evaluation of the porous polymers was carried out practically by gas chromatography at ambient temperature. The modified synthetic procedures were somewhat simpler than the originals. The new porous polymers made with high purity divinylbenzene enabled use of shorter columns to obtain the separations desired.  (+info)

Formation of giant planets by fragmentation of protoplanetary disks. (7/47)

The evolution of gravitationally unstable protoplanetary gaseous disks has been studied with the use of three-dimensional smoothed particle hydrodynamics simulations with unprecedented resolution. We have considered disks with initial masses and temperature profiles consistent with those inferred for the protosolar nebula and for other protoplanetary disks. We show that long-lasting, self-gravitating protoplanets arise after a few disk orbital periods if cooling is efficient enough to maintain the temperature close to 50 K. The resulting bodies have masses and orbital eccentricities similar to those of detected extrasolar planets.  (+info)

The onset of planet formation in brown dwarf disks. (8/47)

The onset of planet formation in protoplanetary disks is marked by the growth and crystallization of sub-micrometer-sized dust grains accompanied by dust settling toward the disk mid-plane. Here, we present infrared spectra of disks around brown dwarfs and brown dwarf candidates. We show that all three processes occur in such cool disks in a way similar or identical to that in disks around low- and intermediate-mass stars. These results indicate that the onset of planet formation extends to disks around brown dwarfs, suggesting that planet formation is a robust process occurring in most young circumstellar disks.  (+info)

Still, scientists have yet to see an extrasolar planet directly or even take a picture of one. Thus far, their presence has only been inferred from either their effect on the orbit of their host stars or by measuring the amount of infrared light they emit. The Spitzer Space Telescope is the only instrument that has successfully used the latter strategy. (To learn more about the Spitzer Space telescope, read Seeing the Invisible.). The job of finding and imaging extrasolar planets is extraordinarily difficult. The biggest challenge is the planets feeble luminosity. A star, fueled by nuclear reactions, is typically a billion times brighter than any orbiting planet, whose light is primarily reflected from the host star. This overwhelming brightness renders nearby extrasolar planets invisible to astronomers. Invisible does not mean undetectable, however.. The Telltale Wobble. One technique scientists use to detect extrasolar planets is to look for a slight wobble in the motion of the host stars. ...
Then he found the ratio of terrestrial planets to all the planets seen. Again, remember, this ratio was found for planets somewhat close in to their stars.. Then he plotted all the planets versus distance from their parent stars. For example, you see very few planets very close to the star (probably because its hard to form or get a planet to orbit that close in), then more as you get farther out, then fewer at some large distance (which may, once again, simply be due to the fact that planets with long orbital periods cant be seen in the short duration of the data). He then found an equation (called a mathematical fit) that did a good job predicting the shape of the plot. Once he had that, its easy enough to extrapolate it out to the distance of the habitable zones of the stars.. That gave him an estimate of all planets orbiting there, including gas and ice giants. Multiply by the ratio of terrestrial planets, and boom! 34% of stars like the Sun should have planets that are Earth-sized ...
Together with Paul Butler, Marcy quickly confirmed the reality of the 51 Pegasi planet using the method of precise Doppler measurement that he had developed for the purpose of extrasolar planet detection over many years. Seventy of the next 100 extrasolar planets discovered were found by his team. Many of these planets had distinctly non-circular orbits, in contrast with the orbits of known planets in our own Solar System. Several reside in systems where there is more than one giant planet, with multiple planets in a given system often having orbital periods that bear integer relationships to one another. As the observational sensitivity and the understanding of systematic errors steadily improve, planets with masses more like Saturn and Neptune are being found, instead of only the Jupiter-like bodies that characterized the initial discoveries. Significantly, there are no bodies that have masses appreciably in excess of 10 Jupiter masses. In a few cases, the orbital plane lies sufficiently ...
The Exoplanets plugin plots the position of stars with exoplanets. Exoplanets data is derived from The Extrasolar Planets Encyclopaedia. List of potential habitable exoplanets and data about them were taken from The Habitable Exoplanets Catalog by Planetary Habitability Laboratory.. Exoplanets Catalog. The exoplanets catalog is stored on the disk in JSON format, in a file named "exoplanets.json". A default copy is embedded in the plug-in at compile time. A working copy is kept in the user data directory.. Configuration. The plug-ins configuration data is stored in Stellariums main configuration file (section [Exoplanets]). ...
Abstract. It is well accepted that ;hot Jupiters and other short-period planets did not form in situ, as the temperature in the protoplanetary disc at the radius at which they now orbit would have been too high for planet formation to have occurred. These planets, instead, form at larger radii and then move into the region in which they now orbit. The exact process that leads to the formation of these close-in planets is, however, unclear and it seems that there may be more than one mechanism that can produce these short-period systems. Dynamical interactions in multiple-planet systems can scatter planets into highly eccentric orbits which, if the pericentre is sufficiently close to the parent star, can be tidally circularized by tidal interactions between the planet and star. Furthermore, systems with distant planetary or stellar companions can undergo Kozai cycles which can result in a planet orbiting very close to its parent star. However, the most developed model for the origin of short ...
Kepler 22-b: Earth-like planet confirmed Astronomers have confirmed the existence of an Earth-like planet in the habitable zone around a star not unlike our own. The planet, Kepler 22-b, lies about 600 light-years away and is about 2.4 times the size of Earth, and has a temperature of about 22C. It is the closest confirmed…
TY - JOUR. T1 - Europa, tidally heated oceans, and habitable zones around giant planets. AU - Reynolds, Ray T.. AU - McKay, Christopher P.. AU - Kasting, James. PY - 1987/1/1. Y1 - 1987/1/1. N2 - Tidal dissipation in the satellites of a giant planet may provide sufficient heating to maintain an environment favorable to life on the satellite surface or just below a thin ice layer. In our own solar system, Europa, one of the Galilean satellites of Jupiter, could have a liquid ocean which may occasionally receive sunlight through cracks in the overlying ice shell. In such a case, sufficient solar energy could reach liquid water that organisms similar to those found under Antarctic ice could grow. In other solar systems, larger satellites with more significant heat flow could represent environments that are stable over an order of Aeons and in which life could perhaps evolve. We define a zone around a giant planet in which such satellites could exist as a tidally-heated habitable zone. This zone can ...
NASAs Hubble Space Telescope has observed a planet outside our solar system that looks as black as fresh asphalt because it eats light rather than reflecting it back into space. This light-eating prowess is due to the planets unique capability to trap at least 94 percent of the visible starlight falling into its atmosphere.. The oddball exoplanet, called WASP-12b, is one of a class of so-called "hot Jupiters," gigantic, gaseous planets that orbit very close to their host star and are heated to extreme temperatures. The planets atmosphere is so hot that most molecules are unable to survive on the blistering day side of the planet, where the temperature is 4,600 degrees Fahrenheit. Therefore, clouds probably cannot form to reflect light back into space. Instead, incoming light penetrates deep into the planets atmosphere where it is absorbed by hydrogen atoms and converted to heat energy.. "We did not expect to find such a dark exoplanet," said Taylor Bell of McGill University and the Institute ...
By analyzing planets orbiting a star called Kepler-32, astronomers at Caltech estimate that there are at least 100 billion planets in our galaxy.. Pasadena, California -Look up at the night sky and youll see stars, sure. But youre also seeing planets-billions and billions of them. At least.. Thats the conclusion of a new study by astronomers at the California Institute of Technology (Caltech) that provides yet more evidence that planetary systems are the cosmic norm. The team made their estimate while analyzing planets orbiting a star called Kepler-32-planets that are representative, they say, of the vast majority in the galaxy and thus serve as a perfect case study for understanding how most planets form.. "Theres at least 100 billion planets in the galaxy-just our galaxy," says John Johnson, assistant professor of planetary astronomy at Caltech and coauthor of the study, which was recently accepted for publication in the Astrophysical Journal. "Thats mind-boggling.". "Its a staggering ...
The team used the K2 data to further characterize the orbits of the other six planets, help rule out the presence of additional transiting planets, and determine the rotation period and activity level of the star. They also discovered that TRAPPIST-1s seven planets appear linked in a complex dance known as an orbital resonance where their respective orbital periods are mathematically related and slightly influence each other. Resonances can be tricky to understand, especially between three bodies. But there are simpler cases that are easier to explain, Luger said. For instance, closer to home, Jupiters moons Io, Eu-ropa and Ganymede are set in a 1:2:4 resonance, meaning that Europas orbital period is exactly twice that of Io, and Ganymedes is exactly twice that of Europa.. These relationships, Luger said, suggested that by studying the orbital velocities of its neighbor planets they could predict the exact orbital velocity, and hence also orbital period, of TRAP-PIST-1h even before the K2 ...
The main advantage of the transit method is that the size of the planet can be determined from the lightcurve. When combined with the radial-velocity method (which determines the planets mass) one can determine the density of the planet, and hence learn something about the planets physical structure. The planets that have been studied by both methods are by far the best-characterized of all known exoplanets.[11]. The transit method also makes it possible to study the atmosphere of the transiting planet. When the planet transits the star, light from the star passes through the upper atmosphere of the planet. By studying the high-resolution stellar spectrum carefully, one can detect elements present in the planets atmosphere. A planetary atmosphere (and planet for that matter) could also be detected by measuring the polarisation of the starlight as it passed through or is reflected off the planets atmosphere.. Additionally, the secondary eclipse (when the planet is blocked by its star) allows ...
We present the detection of five planets-Kepler-62b, c, d, e, and f-of size 1.31, 0.54, 1.95, 1.61 and 1.41 Earth radii (R[subscript ⊕]), orbiting a K2V star at periods of 5.7, 12.4, 18.2, 122.4, and 267.3 days, respectively. The outermost planets, Kepler-62e and -62f, are super-Earth-size (1.25 R[subscript ⊕] , planet radius ≤ 2.0 R[subscript ⊕]) planets in the habitable zone of their host star, respectively receiving 1.2 ± 0.2 times and 0.41 ± 0.05 times the solar flux at Earths orbit. Theoretical models of Kepler-62e and -62f for a stellar age of ~7 billion years suggest that both planets could be solid, either with a rocky composition or composed of mostly solid water in their bulk ...
Planets in astrology have a meaning different from the modern astronomical understanding of what a planet is. Before the age of telescopes, the night sky was thought to consist of two very similar components: fixed stars, which remained motionless in relation to each other, and "wandering stars" (Ancient Greek: ἀστέρες πλανῆται asteres planetai), which moved relative to the fixed stars over the course of the year. To the Greeks and the other earliest astronomers, this group consisted of the five planets visible to the naked eye and excluded Earth. Although strictly, the term planet applied only to those five objects, the term was latterly broadened, particularly in the Middle Ages, to include the Sun and the Moon (sometimes referred to as "Lights"[1]), making a total of seven planets. Astrologers retain this definition today. To ancient astrologers, the planets represented the will of the gods and their direct influence upon human affairs. To modern astrologers, the planets ...
In the search for planets similar to our own, an important point of comparison is the planets density. A low density tells scientists that a planet is more likely to be gaseous like Jupiter, and a high density is associated with rocky planets like Earth. But a new study suggests some are less dense than previously thought because of a second, hidden star in their systems.. As telescopes stare at particular patches of sky, they cant always differentiate between one star and two. A system of two closely orbiting stars may appear in images as a single point of light, even from sophisticated observatories such as NASAs Kepler space telescope. This can have significant consequences for determining the sizes of planets that orbit just one of these stars, says a forthcoming study in the Astronomical Journal by Elise Furlan of Caltech/IPAC-NExScI in Pasadena, California, and Steve Howell at NASAs Ames Research Center in Californias Silicon Valley.. "Our understanding of how many planets are small ...
At the center of the Solar System is the Sun. It is a star, like the billions of other stars in the sky. The other stars are very, very far away, so they look tiny. The Sun is important to us because it gives us heat and energy that allows life. None of the life on Earth could exist without the Sun.[3]. The rest of the things in the Solar System orbit (travel around) the Sun. The planets are the largest of these. Each planet is a little like the Earth. But the planets are also very different from each other.. Many of the planets have moons. A moon orbits a planet. Mercury has no moons[4] and nor does Venus. Earth has one. Jupiter has 63![5]. The planets closest to the Sun are called the inner planets. These are Mercury, Venus, Earth, and Mars. Then comes a big ring of asteroids, chunks of rock much smaller than planets. This ring is called the asteroid belt. Within the asteroid belt, there is a dwarf planet (smaller than a normal planet) named Ceres. Then come the outer planets: Jupiter, Saturn, ...
This puts Gliese 832c in the habitable or Goldilocks zone in its solar system - a sweet spot where it is neither too hot nor too cold for liquid water to exist upon the planets surface.. "With an outer giant planet and an interior potentially rocky planet, this planetary system can be thought of as a miniature version of our Solar System," said professor Chris Tinney of the University of New South Wales where the super-Earth was discovered.. "If the planet has a similar atmosphere to Earth it may be possible for life to survive, although seasonal shifts would be extreme," he added.. ...
At the center of the Solar System is the Sun. It is a star, like the billions of other stars in the sky. The other stars are very, very far away, so they look tiny. The Sun is important to us because it gives us heat and energy that allows life. None of the life on Earth could exist without the Sun.[3]. The rest of the things in the Solar System orbit (travel around) the Sun. The planets are the largest of these. Each planet is a little like the Earth. But the planets are also very different from each other.. Many of the planets have moons. A moon orbits a planet. Mercury has no moons[4] and nor does Venus. Earth has one. Jupiter has 63![5]. The planets closest to the Sun are called the inner planets. These are Mercury, Venus, Earth, and Mars. Then comes a big ring of asteroids, chunks of rock much smaller than planets. This ring is called the asteroid belt. Within the asteroid belt, there is a dwarf planet (smaller than a normal planet) named Ceres. Then come the outer planets: Jupiter, Saturn, ...
Looking for Extra solar planets? Find out information about Extra solar planets. See planet. A planet in orbit about a star other than the sun. Also known as exoplanet Explanation of Extra solar planets
The analysis was undertaken "as if we were aliens looking at Earth with the tools we might have in 10 years" and did not already know Earths composition, Cowan said. "You sum up the brightness into a single pixel in the telescopes camera, so it truly is a pale blue dot.". Since Earths colors changed throughout the 24-hour-long observations, the scientists made maps of the planet in the dominant red and blue colors and then compared their interpretations with the actual location of the planets continents and oceans.. "You could tell that there were liquid oceans on the planet," Cowan said. "The idea is that to have liquid water the planet would have to be in its systems habitable zone, but being in the habitable zone doesnt guarantee having liquid water.". The observations on March 18 and June 4, 2008 were made when the spacecraft was between 17 million and 33 million miles from Earth, and while it was directly above the equator. Observations from above a polar region likely would show up ...
Together with Paul Butler, Marcy quickly confirmed the reality of the 51 Pegasi planet using the method of precise Doppler measurement that he had developed for the purpose of extrasolar planet detection over many years. Seventy of the next 100 extrasolar planets discovered were found by his team. Many of these planets had distinctly non-circular orbits, in contrast with the orbits of known planets in our own Solar System. Several reside in systems where there is more than one giant planet, with multiple planets in a given system often having orbital periods that bear integer relationships to one another. As the observational sensitivity and the understanding of systematic errors steadily improve, planets with masses more like Saturn and Neptune are being found, instead of only the Jupiter-like bodies that characterized the initial discoveries. Significantly, there are no bodies that have masses appreciably in excess of 10 Jupiter masses. In a few cases, the orbital plane lies sufficiently ...
Hot Jupiters are thought to form far from their stars (about where our Jupiter is within the solar system) and then migrate inward due to forces from other planets. The Northwestern researchers modeled a system in which a Jovian-sized planet is joined with another planet even farther out. Over long periods of time, the Jovian planet is nudged closer to its star. In some cases, the tidal effects of the second planet can cause the Jupiter-like planet to first achieve a highly elongated eccentric orbit, and then to flip and start rotating in the opposite direction ...
Standish agreed that the tidal effects of the planets upon the Earth will be negligible. "If all the planets were in a straight line, it would raise the tide only 1/600 hundreds of an inch, so the planets have virtually no effect, he said. A baseball held at arms length would have a tidal effect millions of times stronger on a person than the planet Mars at its closest, Yeomans and Edberg said.. The planetary alignment wont provide much of a visual spectacle, either. The Earth and moon will be on the opposite side of the sun from the other aligned planets. The suns glare will hide the other planets, making the event as much of a no-show for skywatchers as it is for doomwatchers.. "It will be like trying to look at a search light with little fireflies around it," Standish said.. Only the moon, Mars and Venus may be far enough from the sun and bright enough to be seen, with Venus appearing in the eastern dawn sky and the moon and Mars in the western sky just after sunset.. ...
Gaia could also play a role in the search for habitable worlds, not by directly detecting terrestrial planets, but by finding systems with a giant planet orbiting far from a solar-type star, a condition that would increase the possibility of finding an inner terrestrial planet harbouring life.. Increasingly more powerful computers will allow numerical simulations of planetary formation and evolution to develop rapidly, providing an invaluable tool for theoretical studies in this field.. Planetary Detection Methods. There are a number of different methods through which planets are being searched for:. ...
NASAs Kepler mission has verified 1,284 new planets - the single largest finding of planets to date. And its possible for life to exist on nine of them. In the newly-validated batch of planets, nearly 550 could be rocky planets like Earth, based on their size. Nine of them orbit in their suns habitable zone, which is the distance from a star where orbiting planets can have surface temperatures that allow liquid water to pool, NASA said. With the addition of these nine, 21 exoplanets now are known to be members of this exclusive group. Posted By PSmooth
Worlds most comprehensive interactive database of extrasolar planets updated daily since 1995. Detailed information on planet HD 209458 b orbiting around star HD 209458.
Worlds most comprehensive interactive database of extrasolar planets updated daily since 1995. Detailed information on planet HD 40307 b orbiting around star HD 40307.
1 Earth and Planetary Science Letters 208, (2003) The Search for Extrasolar Earth-like Planets S. Seager Department of Terrestrial Magnetism, Carnegie Institution of Washington, Washington, DC,
String voor man - planet-undies.com.String voor man Onderkant van sexy lingerie die de blote billen laat, in het algemeen, de tekenreeks is laag. Dit ondergoed, laat aan de voorzijde van de driehoek ...--Ondergoed N2N voor man - Planet Undies.Ondergoed man sinds 2003 internet specialist ...--Fashion Planet gemist? Kijk het op TVblik!.Uitzending gemist van Fashion Planet? Net5-serie Fashion Planet is een komische dramaserie. Fashion Planet gaat over het slechtlopende modetijdschrift Fashion World ...--Jan Boon - schilderijen, acquarellen, tekeningen, etsen ....De kunstenaar Jan Boon werd op 2 december 1882 geboren in de gemeente Nieuwer-Amstel. Van 1894 tot 1899 was hij leerling van Philip Zilcken, nadat deze hem op straat ...--Geslachtsbepaling en ontwikkeling - home.planet.nl.Home. Bevruchting. Deling &vervoer. Innesteling. Amnion &chorion. De drie kiemlagen en hun functie. Vormgeving van het embryo. Ontwikkeling stap voor stap. Reuk ...--Merken , Fashion merken uit de beste kledingshops in ...
Even in ancient times, people observed the planets that orbit our Sun. Nowadays we know that there are many trillions of other stars in the Universe. It seems likely that planets orbit many of these stars too. The evidence that extrasolar planets exist was obtained for the first time in the 1990s. However, these planets are small, non-luminous bodies that are light years away - how are we able to prove that they exist?
Proxima b, an Earth-size planet right outside our solar system in the habitable zone of its star, may not be able to keep a grip on its atmosphere, leaving the surface exposed to harmful stellar radiation and reducing its potential for habitability.. At only four light-years away, Proxima b is our closest known extra-solar neighbor. However, due to the fact that it hasnt been seen crossing in front of its host star, the exoplanet eludes the usual method for learning about its atmosphere. Instead, scientists must rely on models to understand whether the exoplanet is habitable.. One such computer model considered what would happen if Earth orbited Proxima Centauri, our nearest stellar neighbor and Proxima bs host star, at the same orbit as Proxima b. The NASA study, published on July 24, 2017, in The Astrophysical Journal Letters, suggests Earths atmosphere wouldnt survive in close proximity to the violent red dwarf.. "We decided to take the only habitable planet we know of so far -- Earth -- ...
2009 is the year dedicated to astronomy. Five planets were already found in 55 Cancri the system that looks like our solar system. According to Nasa: "This artists concept illustrates two planetary systems - 55 Cancri and our own. Blue lines show the orbits of planets, including the dwarf planet Pluto in our solar system. The 55 Cancri system is currently the closest known analogue to our solar system, yet there are some fundamental differences." "The similarities begin with the stars themselves, which are about the same mass and age. Both stars also host big families of planets. Our solar system has eight planets, while 55 Cancri has five, making it the record-holder for having the most known exoplanets. In fact, 55 Cancri could have additional planets, possibly even rocky ones that are too small to be seen with current technologies. All of the planets in the two systems have nearly circular orbits. In addition, both planetary systems have giant planets in their outer regions. The giant ...
Dalpeangee eui byeol (Planet of Snail). A love story like no other, Planet of Snail is a mesmerizing documentary by Korean director Seung-Jun Yi, about an accomplished young poet who can no longer hear or see and his relationship to the world around him.. Young-Chan comes from the Planet of Snail. Dwellers of this tiny planet are deaf and blind, and call themselves "snails" because they rely only on their tactile senses, and communicating by touch. Young-Chan was not happy with the lethargic life on the planet. When Young-Chan came to Earth, there was nothing Earth offered him. Worse was that nobody understood his language. When he was desperate, an angel walked into his life.. Young-Chan meets Soon-Ho who becomes his wife and soul mate, an inseparable part of his life, and a window to the outside world. Young-Chan and Soon-Ho communicate through finger braille, a unique form of touch-based sign language in which words are tapped out on each others hands. They rely on one another completely. ...
Habitability. Finding nitrogen has an interesting implication for Earth-sized exoplanets. The definition of habitability is the presence of stable liquid water. We usually define a stars "habitable zone," for example, as the region around the star where liquid water could exist on a rocky planets surface given a thick enough atmosphere. This is usually based on the amount of sunlight the planet receives from the star.. To get a clearer sense of habitability, Schwieterman pointed out, nitrogen could serve as an indicator for an atmosphere thick enough to maintain stable surface water. "If you dont have a thick enough atmosphere, then the water isnt stable on the surface. It evaporates into the atmosphere. If we can confirm other planets have a similar amount of nitrogen as the Earth, we can rule that possibility out." If other habitable terrestrial exoplanets are like the Earth, their atmospheres would be nitrogen-dominated.. An example of this is in our own solar system - on Mars. Billions ...
Artists concept of an exoplanet and its moon transiting a sun-like star. Such a system could be used to directly weigh the star. Credit: David A. Aguilar (CfA). David Kipping, an astronomer at University College London has devised a new way to accurately measure stars. All it takes is a transiting planet with its own moon, and Keplers laws of motion.. Many exoplanets (planets that orbit stars other than our sun) have been found by using the transit method. Briefly, the planet is directly observed passing in front of its star. If that planet also has a moon, astronomers have the three data points they need to figure out the mass of the star. They can directly measure the orbital periods (time it takes to complete an orbit) of the moon and planet, the size of those orbits relative to the star, and the size of the moon and planet themselves relative to the star. Taken together, these data can be used to determine the size of the star. You need all three objects (star, planet and moon) for this ...
Your three planets are under attack! Can you, the Inoculator, save the day?Invasion of the Giant Planet Eating Bacteria From Outer Space is a simple Flash game. Using your mouse, guide your ship about the screen. Floating up from the planets are power ups.The power ups come in three colors and have ...
Phase transitions occur constantly in the interstellar medium and to a large degree define star and planet formation. The transition from atomic to molecular gas sets the initial conditions for star formation, while the formation and destruction mechanisms of dust and other solids is the basis for understanding the origins of planets. This program aims to bring together experts in ISM dynamics, planet formation, exoplanet atmosphere, and planetary ices, from both modeling and observations to study this problem in detail.. The 2017 Nordita Program "Phase Transitions in Astrophysics" will bring together experts from different areas in Astrophysics to discuss scientific topics all across the cosmic range of scales, from interstellar dust and gas, to protoplanetary disks and planetary atmospheres, focusing on the physics of phase transitions. PTA is a project-oriented meeting . All participants are invited to bring project ideas on the broad subject of phase transitions, and include experts on ...
The source observations for this study were made by Kepler, and they would not have happened were it not for a fault in 2013, which prevented accurate control of the space telescope. "Two out of the four control-reaction wheels failed, which meant Kepler couldnt perform its original mission to stare at one specific patch of the sky," explains Professor Motohide Tamura of the University of Tokyo. "This led to its contingent mission, K2 - our observations came from campaign 10 of this mission. Were lucky Kepler continues to function as well as it does.". The planets observed by K2 are known as transiting planets because their orbits bring them in front of their host stars, slightly reducing their brightness. However, other astrophysical phenomena can cause similar signals, so follow-up observations and detailed statistical analyses were performed to confirm the planetary nature of these signals.. As part of his doctoral work, Livingston traveled to Kitt Peak observatory in the U.S. state of ...
The exploration of extrasolar planets is an exploding research area in astronomy. Sixteen years after the first detection of an exoplanet around a solar-type star, more than 1000 objects have been detected. While the first detections were achieved by the radial velocimetry technique, more and more exoplanets (presently over 400) have been identified through the transit method, using both ground-based surveys and dedicated space missions. Following the pioneering work of CoRoT, the Kepler mission has reached a major achievement in the detection of transiting planets, identifying thousands of possible candidates and opening the possibility of detecting super-Earths in the habitable zone of their host stars [1].. These new discoveries have made possible the development of a new research field, the spectroscopic characterization of the exoplanets atmospheres. In the first step, primary transits were considered, when the planet crosses the star in front of it. The absorbed light of the planetary ...
Issuu is a digital publishing platform that makes it simple to publish magazines, catalogs, newspapers, books, and more online. Easily share your publications and get them in front of Issuus millions of monthly readers. Title: Asheville Daily Planet May 2012, Author: Adam Bennett, Name: Asheville Daily Planet May 2012, Length: 16 pages, Page: 1, Published: 2012-05-01
To keep track lets take a trip to Imagination Land (no not the south park version!). Now imagine that the 8 planets and pluto in the solar system are places where humans can live, would the age rate differ from planet to planet? Now lets get back to reality. We may be able to send humans to mars so would be interesting to see if Martian Humans Live longer than Earthling Humans, but to be honest I dont have a couple of centuries to live to see how the age rate over generations evolve on Mars. BUT isnt it possible to send micro living organisms to other planets, in a safe container which MUST not contaminate the planet it visits, and study the age rate of cells and compare... this could be done surely ...
Visualization of a simulation of the interaction between a massive gas giant planet (comparable in mass to Jupiter) and a surrounding protoplanetary disk of gas and dust. These disks are observed to be present for the first few million years after stars such as the sun form. The gravitational interaction between the planet and the gas disk has two consequences. First, it results in the opening of an annular gap in the gas disk near the location of the planet, which starves the planet of further gas needed to grow. And second, it launches spiral waves within the disk that allow the planet to exchange energy with its surroundings. This can cause the planets orbit to change. It may migrate closer toward the star, and--if the planet is massive enough--develop an eccentric orbit. ...
Judith Gradwohl, Smithsonian Institution (Curator/Ocean Planet/Smithsonian Institution) December 19, 1994. In April, 1995, when the nation celebrates the 25th anniversary of Earth Day, Ocean Planet, a traveling exhibition on ocean conservation, will open at the National Museum of Natural History. The culmination of a four-year effort to study the health of the worlds oceans, Ocean Planet is a celebration and a warning: it utilizes compelling objects and photographs, exciting audio-visual techniques, walk-through environments, imaginative sculpture, and live theater to advance our understanding of the value of the worlds oceans. After eight-months in Washington, D.C., Ocean Planet will travel to 11 American cities through the end of the millennium. We may call it Earth, but ours is truly an ocean planet. The vast oceans cover most of the earths surface and reach depths of several miles, encompassing a realm that is, if anything, richer than the land. Hidden beneath the waves are extraordinary ...
Looking for inferior planets? Find out information about inferior planets. The planets Mercury and Venus, which lie closer to the Sun than the Earth. The original meaning of inferior was below. In the concept of the universe that... Explanation of inferior planets
The habitable zone of a planetary system refers to the band of orbits where liquid water could exist on a planets surface. Kepler has recently discovered more than 1,000 new planet candidates. Ten of these candidates are near-Earth-size and orbit in the habitable zone of their host star. Candidates require follow-up observations to verify they are actual planets ...
... la 16,21 RON. Afla detalii despre Detergent bio pentru vase hipoalergen - fara parfum - 510ml planet pure Planet Pure si vezi parerile celorlalti. Reduceri, promotii, oferte speciale la Produse de curatat pe ShopMania.
... la 87,14 RON. Afla detalii despre Detergent bio de rufe hipoalergenic -fara parfum- 3 l planet pure Planet Pure si vezi parerile celorlalti. Reduceri, promotii, oferte speciale la Produse de curatat pe ShopMania.
The chemical and dynamical simulations were combined by assuming that each embryo retains the composition of its formation location and contributes the same composition to the simulated terrestrial planet. The innermost terrestrial planets (located within ∼0.5 AU from the host star) contain a significant amount of the refractory elements Al and Ca (∼47% of the planetary mass). Planets forming beyond ∼0.5 AU from the host star contain steadily less Al and Ca with increasing distance. One planetary system, 55 Cnc, has a C/O ratio above 1 (C/O = 1.12). This system produced carbon-enriched "Earthlike" planets. All of the terrestrial planets considered in this work have compositions dominated by O, Fe, Mg and Si, most of these elements being delivered in the form of silicates or metals (in the case of iron). However, important differences between those planets forming in systems with C/O 0.8 (55Cnc) have been found ...
According to the core instability model, giant planet formation is based first on the formation of a solid core which, when massive enough, can gravitationally bind gas from the nebula to form the envelope. The most critical part of the model is the formation time of the core: it has to grow up to several Earth masses before the gas component of the protoplanetary disc dissipates in order to trigger the accretion of gas. The growth of giant planets cores occur mainly in the so-called oligarchic regime. Embryos growing in the disc stir their neighbour planetesimals, exciting their relative velocities, which makes accretion more difficult. In previous versions of our model, interactions between protoplanets and planetesimals were oversimplified, leading to a fast planetary formation. Here we introduce a more realistic treatment for the evolution of planetesimals relative velocities, which directly impact on the formation timescale. In the case o f simultaneous formation, we developed a simple ...
An international team of astronomers used two of the most powerful radio telescopes in the world to create more than three hundred images of planet-forming disks around very young stars in the Orion Clouds.. These images reveal new details about the birthplaces of planets and the earliest stages of star formation.. Most of the stars in the universe are accompanied by planets. These planets are born in rings of dust and gas, called protoplanetary disks. Even very young stars are surrounded by these disks. Astronomers want to know exactly when these disks start to form, and what they look like. But young stars are very faint, and there are dense clouds of dust and gas surrounding them in stellar nurseries. Only highly sensitive radio telescope arrays can spot the tiny disks around these infant stars amidst the densely packed material in these clouds.. For this new research, astronomers pointed both the National Science Foundations Karl G. Jansky Very Large Array (VLA) and the Atacama Large ...
For the first time, scientists have discovered an Earth-size alien planet in the habitable zone of its host star, an Earth cousin that just might have liquid water and the right conditions for life. The newfound planet, called Kepler-186f, was first spotted by NASAs Kepler space telescope
Evolving Planet[edit]. *Evolving Planet follows the evolution of life on Earth over 4 billion years. The exhibit showcases ... "Evolving Planet". The Field Museum. Retrieved 2018-03-31.. *^ jhoog (2010-11-11). "Inside Ancient Egypt". The Field Museum ...
"Once a dwarf planet, always a dwarf planet" is applied and (2) Dwarf Planets are not asteroids. -- Kheider 15:06, 13 November ... be both a protoplanet and a minor planet,. 2. how IAU labels planets out there seems to be pretty confused, it's time we think ... There are small solar system bodies, dwarf planets, and planets. There is no "protoplanet" designation, that's just a ... James Hilton's When Did the Asteroids Become Minor Planets?, particularly the discussion of Gould, B. A. 1852, On the Symbolic ...
On 5 November 2007, Fear of a Blank Planet won the Album of the Year award for the 2007 Classic Rock magazine awards.[42] In ... Fear of a Blank Planet[edit]. In August 2006, Porcupine Tree announced that the band had signed with Roadrunner Records UK.[31] ... The band announced the next album's title would be Fear of a Blank Planet in January 2007 and the album was released on 16 ... from Fear of a Blank Planet. The song contains soundscapes provided by King Crimson's guitarist, Robert Fripp, and is ...
The power from the Sun that strikes the planet (at the top of the atmosphere) is: P. S. E. =. P. S. e. m. t. (. π. R. E. 2. 4. ... The power emitted by the planet is then: P. e. m. t. =. ϵ. ¯. P. e. m. t. b. b. (. 5. ). {\displaystyle P_{\rm {emt}}={\ ... is the radius of the planet and. D. {\displaystyle D\,}. is the distance between the Sun and the planet.. Because of its high ... The power absorbed by the planet and its atmosphere is then: P. a. b. s. =. (. 1. −. α. ). P. S. E. (. 3. ). {\displaystyle P ...
Model of the Motions of Each of the Seven Planets[edit]. Alhazen's The Model of the Motions of Each of the Seven Planets was ... and to imagine the planet moving in it does not bring about the planet's motion.[107] ... The Model of the Motions of Each of the Seven Planets (نماذج حركات الكواكب السبعة) ... Alhazen believed there was a "true configuration" of the planets that Ptolemy had failed to grasp. He intended to complete and ...
Other celestial bodies (planets, moons). The appearance of plate tectonics on terrestrial planets is related to planetary mass ... "Planet Earth and the New Geosciences (3 ed.). p. 442. ISBN 978-0-7872-4296-1. Archived from the original on 2010-01-24. ... Meissner, Rolf (2002). The Little Book of Planet Earth. New York: Copernicus Books. p. 202. ISBN 978-0-387-95258-1.. ... Glatzmaier, Gary A. (2013). Introduction to Modeling Convection in Planets and Stars: Magnetic Field, Density Stratification, ...
As the planet Venus[edit]. Inanna was associated with the planet Venus, which is named after her Roman equivalent Venus.[39][78 ... The planet Venus appears to make a similar descent, setting in the West and then rising again in the East.[79] An introductory ... The poem Inanna and Shukaletuda (ETCSL 1.3.3) begins with a hymn to Inanna, praising her as the planet Venus.[164] It then ... She was associated with the planet Venus and her most prominent symbols included the lion and the eight-pointed star. Her ...
The formation of terrestrial planets differs from that of giant gas planets, also called Jovian planets. The particles that ... "Birth of the planets: The Earth and its fellow planets may be survivors from a time when planets ricocheted around the Sun ... Safronov, Viktor S. (1972) [1969]. Evolution of the Protoplanetary Cloud and Formation of the Earth and the Planets. Jerusalem ... August 2019). "Planet seeding through gas-assisted capture of interstellar objects". Monthly Notices of the Royal Astronomical ...
Merger of two planets[edit]. To help resolve these problems, a new theory published in 2012 posits that two bodies-each five ... Did We Steal Our Moon From Venus? Is our planet a dirty thief?, Popular Science, 09.27.2013 at 5:07 pm ... The Moon's relatively small iron core (compared to other rocky planets and moons in the Solar System) is explained by Theia's ... The synestia will eventually shrink and cool to accrete the satellite and reform the impacted planet.[16] ...
Happy Planet Index[edit]. Main article: Happy Planet Index. In July 2006, the Foundation launched the Happy Planet Index, ... The Happy Planet Index: An index of human well-being and environmental impact. Nic Marks, Saamah Abdallah, Andrew Simms and Sam ...
... (minor planet designation: 134340 Pluto) is an icy dwarf planet in the Kuiper belt, a ring of bodies beyond the orbit of ... Dwarf planet in the Kuiper belt of the Solar System. This article is about the dwarf planet. For the deity, see Pluto ( ... "Pluto: The Discovery of Planet X. Retrieved November 29, 2011.. *^ a b c d Rincon, Paul (January 13, 2006). "The girl who named ... Declaring Pluto a planet and declaring March 13, 2007, 'Pluto planet day' at the legislature". Legislature of New Mexico. ...
For other planets[edit]. While the Kármán line is defined for Earth only, if calculated for Mars and Venus it would be around ...
... planets are a hypothetical type of planet with a surface completely covered with liquid.[11][12] ... Some planets and natural satellites outside the Solar System are likely to have oceans, including possible water ocean planets ... Underneath the thick atmospheres of the planets Uranus and Neptune, it is expected that these planets are composed of oceans of ... Hinrichsen, D (2011-10-03). "The ocean planet". People Planet. 7 (2): 6-9. PMID 12349465.. ...
Planets and Comets[edit]. The Institute develops scientific instruments that fly with spacecraft to other planets. Highly ... The curriculum covers the entire area of the solar system from small bodies to the planets and the Sun. The goal is a broad, ... Further MPS instruments identify the atoms, electrons, and dust that move around the planets and impact their moons. Here the ... The second area of research involves the interiors, surfaces, atmospheres, ionospheres, and magnetospheres of the planets and ...
... with a giant planet. (By definition, a centaur is a minor planet whose orbit crosses the orbit(s) of one or more giant planets ... Ring systems of planets[edit]. The ring swirling around Saturn consists of chunks of ice and dust. The little dark spot on ... and is a common component of satellite systems around giant planets. A ring system around a planet is also known as a planetary ... Rings systems of minor planets and moons[edit]. Reports in March 2008[18][19][20] suggested that Saturn's moon Rhea may have ...
... most planets will be terrestrial planets rather than gas giants.[66] If a giant planet orbits a brown dwarf across our line of ... Exoplanet - Any planet beyond the Solar System. References[edit]. *^ Boss, Alan (2001-04-03). "Are They Planets or What?". ... "Working Group on Extrasolar Planets: Definition of a "Planet"". IAU position statement. 2003-02-28. Retrieved 2014-04-28.. ... Gibor Basri; Brown (2006-08-20). "Planetesimals to Brown Dwarfs: What is a Planet?". Annu. Rev. Earth Planet. Sci. 34 (2006): ...
Volchok Prime - Planet in Ferengi space.[137]. Vulcan - A dry, hostile planet in the 40 Eridani A system that is the homeworld ... Taurus Ceti IV - Planet where Captain Janeway got her dog, Molly, as a puppy from a pound. Note: The planet most likely should ... Janeway's father), drowned on the planet.[38]. Tau Ceti III - Planet where Picard first met his friend Captain Keel.[39] Non- ... Tau Ceti IV - Home port planet of the simulation ship Kobayashi Maru. Planet's name was indicated on a readout screen.[40] ...
In his books The Book Which Tells the Truth (1974) and Extraterrestrials Took Me to their Planet (1975), Vorilhon had alien ... In that case, humanity could travel the distances between stars[8]:p. 159 and create life on another planet.[8]:p. 70 Progress ... In Raël's book, Extraterrestrials took me to their planet, Raël says that an extraterrestrial gave him the idea of Economic ... Humanity's chance of creating life on other planets[edit]. Raëlians believe that humanity would be able to create life on other ...
... have a meaning different from the modern astronomical understanding of what a planet is. Before the age of ... Classical planets[edit]. The seven classical planets are those easily seen with the naked eye, and were thus known to ancient ... planets as they represent a transition from the inner personal planets to the outer modern, impersonal planets. The outer ... Richard Brown: New Planets *^ AstroTransits.blogspot.com New dwarf planets in Astrology (Sedna, Eris, Haumea, Quaoar, Makemake ...
The planets have been designated Pr0201 b and Pr0211 b. The 'b' at the end of their names indicates that the bodies are planets ... Planets[edit]. In September, 2012 two planets which orbit separate stars were discovered in the Beehive Cluster. The finding ... "First Planets Found Around Sun-Like Stars in a Cluster". Retrieved September 14, 2012.. ... The discoveries are what have been termed Hot Jupiters, massive gas giants that, unlike the planet Jupiter, orbit very close to ...
For the failed IAU planet category of Classical Planets, see IAU definition of planet. ... Babylonians recognized seven planets. A bilingual list in the British Museum records the seven Babylonian planets in this order ... "Seven classical planets" redirects here. For Wandering stars that are not planets, see Wandering star (disambiguation). ... Main articles: Astrological symbols and Planet symbols. The astrological symbols for the classical planets appear in the ...
Planets, asteroids, and comets[edit]. Planets, asteroids, and comets all reflect light from their parent stars and emit their ... Planets[edit]. The reflected light of a planet contains absorption bands due to minerals in the rocks present for rocky bodies ... Just as planets can be gravitationally bound to stars, pairs of stars can orbit each other. Some binary stars are visual ... Spectroscopy is also used to study the physical properties of many other types of celestial objects such as planets, nebulae, ...
Dictionary of Minor Planet Names, Google books. *Discovery Circumstances: Numbered Minor Planets (1)-(5000) - Minor Planet ... "Minor Planet Center. 30 May 2018. Retrieved 12 June 2018.. *^ a b c "Asteroid (1173) Anchises - Proper elements". AstDyS-2, ... The official naming citation was mentioned in The Names of the Minor Planets by Paul Herget in 1955 (H 109).[2] ... "The Minor Planet Bulletin. 43 (3): 265-270. Bibcode:2016MPBu...43..265S. ISSN 1052-8091. Retrieved 3 March 2018.. ...
"Minor Planet Center. Retrieved 21 September 2017.. *^ a b c d Duffard, R.; Pinilla-Alonso, N.; Santos-Sanz, P.; Vilenius, E.; ... Discovery Circumstances: Numbered Minor Planets (30001)-(35000) - Minor Planet Center. *31824 Elatus at the JPL Small-Body ... This minor planet was named after Elatus, a centaur from Greek mythology, who was killed during a battle with Heracles (also ... Schmadel, Lutz D. (2006). Dictionary of Minor Planet Names - (31824) Elatus, Addendum to Fifth Edition: 2003-2005. Springer ...
Kawākib (Planets) *Al-Arḍ (The Earth). *Nujūm (Stars) *Ash-Shams (The Sun) ...
This week this bright planet approaches and passes the planet Uranus. This evening Venus is 6.3° to the lower right of Uranus. ... This week this bright planet approaches and passes the planet Uranus. This evening Venus is 6.3° to the lower right of Uranus. ... Filed under: astronomy, conjunction, Planets, sky watching, Venus Post navigation. ← Previous Post. 2020, March 2: Morning ...
Not much is known about the furthest planet in our solar system - including not only if it is indeed the furthest planet, but ... Furthermore, Plutos surface temperature varies greatly because of the planets eccentric orbit and polar tilt. As the planet ... We have good pictures of every other planet, but not Pluto.". The Scientific Mission. New Horizons is the fastest spacecraft ... Not only is it the farthest planet in the solar system - more than a billion miles away from Neptune - but it is completely ...
Its the first time in a generation since weve been to a new planet where we go from a single piece of paper of knowledge to ... The planet is too far away for the best telescopes, either on Earth or in space -- to provide much information. ...
Similar Discussions: Life on other planets, are we looking at the wrong planets? * Lonely Planets: The Natural Philosophy of ... Scientists are looking for earth like planets/bodies to find life on other planets/bodies, somewhere that is warm enough that ... one of the advantages of looking for Earth-like planets is that we have some idea of what life on Earth-like planets should ... one of the advantages of looking for Earth-like planets is that we have some idea of what life on Earth-like planets should ...
Vital Signs of the Planet: Global Climate Change and Global Warming. Current news and data streams about global warming and ... Explore a stunning gallery of before-and-after images of Earth from land and space that reveal our home planet in a state of ... Keep track of Earths vital signs, see the planet in a state of flux and slow the pace of global warming with NASAs free ... A NASA camera observing the sunlit side of Earth from a million miles away is providing new data on daily changes to our planet ...
2018 Lonely Planet. All rights reserved. No part of this site may be reproduced without our written permission. ... Ready to go? Get to the heart of Cancún with one of Lonely Planets in-depth, award-winning guidebooks. ... I want emails from Lonely Planet with travel and product information, promotions, advertisements, third-party offers, and ...
... the planets worst mass extinction - 250 million years ago, at the end of the Permian Period - may parallel climate change ... The Planet Has Seen Sudden Warming Before. It Wiped Out Almost Everything.. In some ways, the planets worst mass extinction - ... This mass extinction, at the end of the Permian Period, was the worst in the planets history, and it happened over a few ... Just how much warmer the planet will get is up to us. It will take a tremendous international effort to keep the increase below ...
Planets in astrology have a meaning different from the modern astronomical understanding of what a planet is. Before the age of ... Classical planets[edit]. The seven classical planets are those easily seen with the naked eye, and were thus known to ancient ... planets as they represent a transition from the inner personal planets to the outer modern, impersonal planets. The outer ... Richard Brown: New Planets *^ AstroTransits.blogspot.com New dwarf planets in Astrology (Sedna, Eris, Haumea, Quaoar, Makemake ...
No telescope can directly detect a planet revolving around a star; even the nearest stars are too far away. But planets can be ... Intelligent life on other planets (SETI). The question of whether alien planets have intelligent beings on them is a still-more ... Note: in "Cosmos" (1980) Carl Sagan notes that "Two such quests [for extra-solar planets] have been performed for planets ... Planets. by Carl Sagan, Jonathon Norton Leonard and the Editors of LIFE. Life Science Library. "This book, from its conception ...
Based on the famous Gustav Holst musical suite, this musical film takes watchers on a magnificent journey of the planets of the ... It is a complete performance of The Planets by (as far as I remember) the Chicago Symphony. What makes it special is Ken ... Based on the famous Gustav Holst musical suite, this musical film takes watchers on a magnificent journey of the planets of the ... Based on the famous Gustav Holst musical suite, this musical film takes watchers on a magnificent journey of the planets of the ...
When the planet passes in front of the star, it blocks a portion of the starlight. When the planet continues to circle around ... But planets emit their own infrared radiation. When Spitzer observes a solar system, the star still outshines the planet, but ... Planet Hunting Strategies. For centuries, scientists have pondered the possible existence of extrasolar planets, but only in ... The Hunt for Extrasolar Planets. What if the Universe contains other planets like Earth outside the Solar System? After all, ...
Now Kepler has found a whole system of planets orbiting a double star. This finding shows that planetary systems are weirder ... astronomers thought planets couldnt form around binary stars. ... Yet this planet was real. Now Kepler has discovered a whole ... for liquid water to exist on the surface of a planet. But does this planet even have a surface? Possibly not. The astronomers ... The outer planet, Kepler-47c, orbits every 303 days. This puts it in the systems habitable zone, a band of orbits that are " ...
Giving planets names, instead of alphanumeric designations, would help inspire some awe in the universe, as evidenced by David ... When planets are named after mythological characters, it gives them a back story that amateurs and laypeople can understand ... We give proper, sometimes impressive names to planets in our solar system, and Christopher Cokinos asks in the American Scholar ... Giving creative names to distant planets could restore a sense of wonder and a greater attachment to the celestial bodies, ...
"These stars may or may not go on to form small, inner planets like the Earth, but its probable that outer planets like Uranus ... Many stars and planets do in fact grow up and survive the harsh environments of massive stars. Some astronomers say our middle- ... Outer planets, on the other hand, might be nothing more than dust in the wind. NASAs Jet Propulsion Laboratory, Pasadena, ... The sun-like stars are about two to three million years old -- the age when stars are thought to begin forming planets out of ...
Blast off with Voyage to the Planets: a 6 x 55 minute formatted documentary series with a parallel online experience exploring ... the pleasures and pitfalls of visiting the very alien planets of our own Solar System. ... VOYAGE TO THE PLANETS DVD. Explore the pleasures and pitfalls of travel to the planets of our Solar System...more ... Pluto may no longer be regarded as a planet, but there s more to see at the edge of our Solar System than you may have ever ...
... a discovery that may reduce the odds for Earthlike planets in these systems. ... a planets rate of orbital decay has decreased by the time the planet gets really close to its star, allowing the planet to ... This gravity battle tilts a planet into a different orbital plane, the theory goes, and elongates the planets orbital path. On ... so that the planets orbit decays, and eventually the planet settles into a tight, tilted orbit. ...
However, planets can be hot compared with the melting point or Debye temperature. All giant planets, inside and outside our ... The cooling of giant planets from their initial hot state is affected by their size (3) (more massive planets have higher ... 2005) The interiors of giant planets: Models and outstanding questions. Annu Rev Earth Planet Sci 33:493-530. ... What are the consequences for giant planets? Certainly the authors results are of greatest relevance for planets more massive ...
Home Arts & Culture Art Planets Align. Planets Align. The last living witnesses bring back an early 20th-century ballet classic ... Tudor was one of the last centurys most influential choreographers, and The Planets was his fourth ballet, one of the last he ... Labanotation The Planets Issue: 2002-03-27 Arts Arts Feature by Byron Woods ... Topaz also believes Tudor never entirely trusted the degree of innovation in The Planets. She knows that her subject was afraid ...
... before condensing the pictures into circular planet shaped images ... Tiny Planets. Paul Reiffer captures the geography of cities, ... with multiple photographs, before condensing the pictures into circular planet shaped images. Above, Auckland ...
Perihelion: The point in a planets orbit closest to the Sun.. Aphelion: The point in a planets orbit furthest from the Sun. ... Side notes: Saturn is the last planet in our solar system which is easily visible to the unaided eye. Saturns rings are ... Average distance from Sun: Average distance from the center of a planet to the center of the Sun. ...
About Lonely Planet. About us Work for us Contact us Press, trade & advertising Blog Terms & conditions Privacy policy ... Shop Destination guides eBooks Pictorial & gifts Phrasebooks Lonely Planet Kids Special offers ... 2019 Lonely Planet. All rights reserved. No part of this site may be reproduced without our written permission. ... I want emails from Lonely Planet with travel and product information, promotions, advertisements, third-party offers, and ...
The agencies will study the gas planet and its icy moon, Titan. UCLs involvement will be to probe the interactions between the ... Planet meets plasma. 24 November 1990 NASA last week named University College London as a key experimenter. for a mission to ... The agencies will study the gas planet and its icy moon, Titan. UCLs. involvement will be to probe the interactions between ...
Fishing Planet® is a unique and highly realistic online first-person multiplayer fishing simulator developed by avid fishing ... Fishing Planet® is a unique and highly realistic online first-person multiplayer fishing simulator developed by avid fishing ... Fishing Planet® is a unique and highly realistic online first-person multiplayer fishing simulator developed by avid fishing ... Fishing Planet® isnt just another game about fishing. Stunning eye-candy graphics, superb hydro and aerodynamics, realistic ...
Young-Chan comes from planet of snail where deaf blind people live slow and quiet lives. When Young-Chan came to Earth, nobody ... PLANET OF SNAIL (dir. Yi Seung-jun) A touching and inspiring film about a special needs couple. Young-Chan has been deaf and ... Young-Chan comes from planet of snail where deaf blind people live slow and quiet lives. When Young-Chan came to Earth, nobody ... Young-Chan comes from planet of snail where deaf blind people live slow and quiet lives. When Young-Chan came to Earth, nobody ...
Plumbing the planet. 7 September 2002 Two years ago, South Africa had its worst ever outbreak of cholera, in the Kwazulu-Natal ...
  • NASA scientists announced that New Horizons -- a piano-sized spacecraft with seven instruments -- is en route to become the first probe to make a close encounter with Pluto set for next summer. (arnnet.com.au)
  • Lonely Planet Vietnam is your passport to the most relevant, up-to-date advice on what to see and skip, and what hidden discoveries await you. (worldcat.org)
  • Meyer and his colleagues found that at least one-fifth (20 percent), and possibly as many as three-fifths (60 percent), of stars similar to the sun are candidates for forming rocky planets. (redorbit.com)
  • Their models predict warm dust would be detected during planet formation, as small rocky bodies collide and merge, creating larger rocky bodies and eventually assembling the asteroids, moons and planets. (redorbit.com)
  • Kenyon said, "Our work suggests that the warm dust Meyer and colleagues detect is a natural outcome of rocky planet formation. (redorbit.com)
  • From a new pair of planets like Tatooine of "Star Wars" fame , each with its own pair of suns, to a trio of small rocky planets zipping around a red-dwarf star, the cosmos presents a breathtaking plethora of planetary systems. (go.com)
  • Every rocky planet likely develops a liquid-water ocean shortly after forming, suggesting that potentially habitable alien worlds may be common throughout the universe, a prominent scientist says. (yahoo.com)
  • The building blocks of rocky planets contain more than enough water to seed oceans, and computer models and Earth's own history suggest such seas should slosh around soon after these worlds' surfaces have cooled down and solidified, said Lindy Elkins-Tanton of the Carnegie Institution for Science in Washington, D.C. (yahoo.com)
  • The ramifications of this are that, in any exoplanet system anywhere in our universe, if it's made of rocky materials with similar water contents to ours, every rocky planet would be expected to start with a water ocean," Elkins-Tanton said. (yahoo.com)
  • After all, Earth's solar system hosts rocky planets - Mercury, Venus and Mars - whose surface oceans have long since disappeared, if they ever existed at all. (yahoo.com)
  • Indeed, how some rocky worlds manage to retain their water is an area ripe for future research, Elkins-Tanton said, specifically citing the case of Venus , Earth's hellishly hot "sister planet" that veered down a very different road after its formation. (yahoo.com)
  • Intriguingly, the outer planet lurks in the system's habitable zone, where a rocky planet like Earth is the right temperature to have liquid water on its surface. (space.com)
  • Now, a paper published today in Nature reveals that TRAPPIST-1 has not three but seven Earth-sized planets, six of which are likely rocky, and all seven could possibly support liquid water. (popularmechanics.com)
  • The larger planet, on the other hand, likely has a rocky core surrounded by a substantial amount of atmospheric hydrogen and helium. (tgdaily.com)
  • Within our solar system, rocky planets reside close to the sun, with the gas giants much more distant. (tgdaily.com)
  • The VLA detected a concentration of rocky particles about the size of pebbles in the disk of material around HL Tau, which suggested a planet might be forming. (nationalgeographic.com)
  • All three planets are probably rocky, and e and f are in the star's habitable zone. (skyandtelescope.com)
  • Small rocky planets with liquid water enjoy key ingredients for biology. (pnas.org)
  • This animated movie zooms into the location of a newfound planet dubbed HD 219134b -- the closest confirmed rocky pla. (caltech.edu)
  • What's more, the discovery of these odd exoplanets challenges a leading theory for the formation of planets known as hot Jupiters, which in turn means that fewer Earthlike planets may exist in the universe. (nationalgeographic.com)
  • A new planet discovery will be announced Monday Jan. 10 during the 'Exoplanets & Their Host Stars' presentation at the American Astronomical Society (AAS) conference in Seattle, Washington. (redorbit.com)
  • As of 3-22-13, 861 planets outside our solar system (exoplanets) have been identified--in less than a decade. (smugmug.com)
  • The authors behind the new paper set out to compare the masses of hundreds of exoplanets and protoplanetary disks, where baby planets are being forged. (wired.com)
  • I believe that theorists, myself included, will be going back to the drawing board to try to improve our understanding of how planets are assembled in the dusty gaseous disks that surround many young stars. (nasa.gov)
  • It's a tiny bit less hospitable than Earth: known as HD 189733b, the planet is a giant, gaseous world resembling Jupiter, but much hotter. (bing.com)
  • The researchers said the newly discovered planets appear to be gaseous, like Jupiter and Saturn, but only about 80 percent as big. (deseretnews.com)
  • Based on a six-year survey of stars using a technique known as gravitational lensing, in which an intervening star's gravity magnifies the light from a star far behind it, the team estimates that 17 percent of all stars in the galaxy host a planet of Jupiter's mass or greater. (go.com)
  • From the resulting dip in the star's brightness, we can deduce the presence of planets and even their size. (popularmechanics.com)
  • They used the Hubble Space Telescope to study the moment the exoplanet 'HD 189733b' passed behind its parent star so that they saw both the star's light and light reflected off the planet (its 'albedo') and then, once HD 189733b has disappeared, just the star's light on its own. (ox.ac.uk)
  • One of the next questions to answer is just how much of the parent star's light HD189733b is absorbing, because the wavelengths we've measured only account for about 20 per cent of the starlight that falls upon the planet,' Tom adds. (ox.ac.uk)
  • The Spitzer Space telescope has pioneered a newer planet-finding technique called the 'secondary eclipse method. (amnh.org)
  • Given the trend toward higher numbers of lower-mass planets, "statistically, every star in the galaxy should have at least one planet, and probably more," according to Kailash Sahu, a researcher a the Hubble Space Telescope Institute in Baltimore and a member of the research team. (go.com)
  • An essential wheel used to keep the telescope in position while planet hunting failed after showing signs of increased friction for about the past five months. (yahoo.com)
  • Last year, a research team operating the ESO's Transiting Planets and Planetesimals Small Telescope, or TRAPPIST, discovered that a small, dim red dwarf star about 39 light-years away had three planets orbiting it . (popularmechanics.com)
  • This was prior to looking at the planet through a telescope. (universetoday.com)
  • A telescope follows not far behind, using the starshade to block out the light of the stars and reveal the light of the planets in the process. (popularmechanics.com)
  • They compared planet catalogs and disk measurements compiled by the world's most powerful radio telescope and found the planet masses were much bigger than the disk masses. (wired.com)
  • The telescope collected the infrared light from the star and the planet, then just the star as the planet disappeared behind the star. (nasa.gov)
  • When Spitzer observes a solar system, the star still outshines the planet, but much less than it would in visible light. (amnh.org)
  • Finding extrasolar planets with Spitzer is still hardly as simple as taking a snapshot. (amnh.org)
  • Instead, Spitzer relies on the fact that some planets periodically eclipse, or block, the light from their host stars. (amnh.org)
  • Spitzer can measure the amount of infrared light from the star plus planet vs. the star alone, subtracting to determine the amount of infrared light emitted by just the planet. (amnh.org)
  • More recently, Spitzer has focused its spectrometer instrument on two such planets, HD 209458b and HD 189733b, using the same secondary eclipse method. (amnh.org)
  • The numbers on how many stars form planets are ambiguous because there's more than one way to interpret the Spitzer data, Meyer said. (redorbit.com)
  • Spitzer made these measurements as the planet circled behind the star, in an event called the secondary eclipse. (nasa.gov)
  • Such a world, they realized, would have double sunsets and sunrises just like the fictional planet Tatooine in the movie Star Wars. (nasa.gov)
  • The planets have two suns like the fictional planet Tatooine in the "Star Wars" universe. (space.com)
  • Scientists had found planets in these binary systems, so-called circumbinary planets with two suns like Tatooine in the 'Star Wars' universe. (space.com)
  • This artist's conception shows the inner four planets of the Gliese 581 system and their host star. (yahoo.com)
  • Planets that coalesce out of the disks should therefore share the same orbital direction and should move within a single, tabletop-like plane around their stars. (nationalgeographic.com)
  • This gravity battle tilts a planet into a different orbital plane, the theory goes, and elongates the planet's orbital path. (nationalgeographic.com)
  • This chart shows, on the top row, artist conceptions of the seven planets of TRAPPIST-1 with their orbital periods, distances from their star, radii and masses as compared to those of Earth. (popularmechanics.com)
  • That said, we know very little about these planets, almost nothing beyond estimates for their size, distance from the host star, and orbital periods. (popularmechanics.com)
  • To quote the modern biochemist Dr Frank McGillion, The orbital motion of the planet correlates in sequence with its corresponding metal's conductivity The slower a planet moves, the less able its corresponding metal is to conduct electricity! (levity.com)
  • This means that their orbital periods are rough integer multiples of one another - for example, in the same span of time that the innermost planet whips around the star eight times, the second planet takes five laps, the third three, and the fourth two. (skyandtelescope.com)
  • We also find that the occurrence of Earth-size planets is constant with increasing orbital period ( P ), within equal intervals of log P up to ∼200 d. (pnas.org)
  • of Sun-like stars harbor an Earth-size planet with orbital periods of 200-400 d. (pnas.org)
  • The shift in wavelength when a star wobbles is very tiny, so this technique has thus far detected only very massive planets. (amnh.org)
  • For hot Jupiters, the leading theory has been that the massive planets take shape in the cold, outer reaches of their star systems. (nationalgeographic.com)
  • While no Earth-scale planets in this Goldilocks zone have yet appeared, "these latest observations make it extremely likely that Earth-scale planets in the habitable zone exist, probably in large numbers," says Philip Armitage, an astrophysicist at the University of Colorado at Boulder. (go.com)
  • And most of the planets, nearly all of those planets were not in this 'Goldilocks Zone. (loe.org)
  • Scientists are looking for earth like planets/bodies to find life on other planets/bodies, somewhere that is warm enough that liquid water can exist, and somewhere with basic organic molecules. (physicsforums.com)
  • In terms of astrobiology, one of the advantages of looking for Earth-like planets is that we have some idea of what life on Earth-like planets should look like and what signs we should be looking for. (physicsforums.com)
  • By convention, the first planet found in a system is always designated "b," not "a. (space.com)
  • It's where many of the exo-planets have been found. (loe.org)
  • These are the closest two planets to one another that have ever been found," says UW astronomy professor Eric Agol. (tgdaily.com)
  • Carlo Manara, an astronomer at the European Southern Observatory, found that planets appear to be larger than the disks that create them. (wired.com)
  • The discovery roller-coaster began when the team found that what it had thought was a combined transit of planets #2 and #3 was in fact the crossing of three planets. (skyandtelescope.com)
  • This is the first time we had a high enough magnification event where we had significant sensitivity to a second planet and we found one," Gaudi said in a statement. (deseretnews.com)
  • Four single planets have been found previously using microlensing, two of them by the Ohio State University-based Microlensing Follow Up Network MicroFUN. (deseretnews.com)
  • What I found was that the anticipated warm-glow from helping to save the planet does in fact predict green behavior four weeks later! (psychologytoday.com)
  • The star and its planets were observed when they passed in front of a more distant star in 2006. (deseretnews.com)
  • The team was then able to combine their ground- and space-based observations and slice and dice them to determine that the signals likely came from seven different planets. (skyandtelescope.com)
  • The majesty of the cosmos seems somewhat diminished when scientists refer to planets by alphanumeric designations. (utne.com)
  • Determining whether Earth-like planets are common or rare looms as a touchstone in the question of life in the universe. (pnas.org)
  • This table shows the astrological planets (as distinct from the astronomical) and the Greek and Roman deities associated with them. (wikipedia.org)
  • In most cases, the English name for planets derives from the name of a Roman god or goddess. (wikipedia.org)
  • As an example of such a system, he pointed to the planets of our own solar system , all of which except Earth are named for Greek or Roman gods. (space.com)
  • The concept of the work is astrological rather than astronomical (which is why Earth is not included): each movement is intended to convey ideas and emotions associated with the influence of the planets on the psyche, not the Roman deities. (wikipedia.org)
  • Planets are named after mostly Roman gods and goddesses. (syvum.com)
  • HD 189733b's system is one of the best studied of all exoplanet systems because its star is bright and close to its planets, making interactions easier to spot. (ox.ac.uk)
  • Life on other planets, are we looking at the wrong planets? (physicsforums.com)
  • It is also possible that the emergence of life is extremely unlikely, happening on average just once per 10 whatever habitable planets. (physicsforums.com)
  • In Chinese astrology , the planets are associated with the life forces of yin and yang and the five elements , which play an important role in the Chinese form of geomancy known as Feng Shui . (wikipedia.org)
  • Life on other planets may have evolved-or may now exist-in similar rudimentary form. (tpg.com.au)
  • Although The Planets remains Holst's most popular work, the composer himself did not count it among his best creations and later in life complained that its popularity had completely surpassed his other works. (wikipedia.org)
  • That doesn't mean life on other planets would necessarily be based on liquid water, but it gives us one of our best clues as to what to look for. (slate.com)
  • Now host Bruce Gellerman asks astrophysicist Neil deGrasse Tyson about the "Goldilocks" planet that is potentially just right for life. (loe.org)
  • GELLERMAN: But if we went to an exo-planet, we could literally trip over something and we might not know it's life. (loe.org)
  • What is certain, the astrophysicist said, is that the planet will never support life. (nationalgeographic.com)
  • Class I habitats represent bodies on which stellar and geophysical conditions allow Earth-analog planets to evolve so that complex multi-cellular life forms may originate. (springer.com)
  • Aguilar DA (2008) Earth: a borderline planet for life? (springer.com)
  • Although we tend to think of our planet as defined by carbon, the basis of life, the element is actually a fairly minor constituent. (scientificamerican.com)
  • We are alone, absolutely alone on this chance planet: and, amid all the forms of life that surround us, not one, excepting the dog, has made an alliance with us. (tor.com)
  • BASCOMB: At its heart, Our Planet is a celebration of the remarkable biodiversity of life on Earth. (loe.org)
  • Does life exist on other planets? (innovations-report.com)
  • Since four billion years is almost half the anticipated life-time of our Sun, life on other planets orbiting short-lived suns may not have enough time to evolve into complex forms. (innovations-report.com)
  • But when our planet first formed its surface must also have been devoid of life. (innovations-report.com)
  • An optimistic scenario would suggest that the biggest, most massive disks would undergo the runaway collision process first and assemble their planets quickly. (redorbit.com)
  • The authors suggest one of two things could be happening: There could be material in the disks that we can't see, or disks are somehow replenished of planet-building stuff from beyond the star. (wired.com)
  • The planet is also tidally locked so that one side is permanently facing its star whilst the other side is in eternal shadow. (ox.ac.uk)
  • We also note that planets may be tidally disrupted by Sgr A* as well, also very infrequently. (harvard.edu)
  • All giant planets, inside and outside our solar system, are likely to be in a fluid state throughout (with the possible exception of a central core of heavier elements). (pnas.org)
  • What are the consequences for giant planets? (pnas.org)
  • Outer planets, on the other hand, might be nothing more than dust in the wind. (nasa.gov)
  • Giving creative names to distant planets could restore a sense of wonder and a greater attachment to the celestial bodies, Cokinos writes. (utne.com)
  • The question always has been -- do they have planets and planetary systems? (nasa.gov)
  • Astronomer Geoff Marcy, the celebrated co-discoverer of two planets, will discuss these discoveries and the study of planetary systems. (berkeley.edu)
  • On closest approach, the planet presents the largest apparent planetary disk possible as seen from the Earth. (universetoday.com)
  • At their closest, the two planets come within about 1.2 million miles of each other - only five times the Earth-moon distance and about 20 times closer to one another than any two planets in our solar system. (tgdaily.com)