Astronomers consider dust. Medical search. Frequent questions

The NASA and ESA Hubble space telescope is on a captivating quest to image all 110 space objects listed in a catalog that originated with French astronomer Charles Messier . (cnet.com)
It's one of 110 space objects included in the Messier catalog, which is named for French astronomer Charles Messier. (cnet.com)
Messier 104 is the 104th object in the famous catalogue of nebulae by French astronomer Charles Messier (1730 - 1817). (lu.se)

One possibility is that gas produced in the impact that released the dust helped to quickly drag the dust particles into the star and thus to their doom. (scitechdaily.com)
In another possibility, collisions of large rocks left over from an original major impact provide a fresh infusion of dust particles into the disk, which caused the dust grains to chip apart into smaller and smaller pieces. (scitechdaily.com)
Dubbing the region a 'comet factory', the astronomers believe that their research could solve the mystery about how dust particles in discs morph so that they can eventually form comets, planets and other rocky bodies. (siliconrepublic.com)
We know that for a planet to form, dust particles in orbit around a star must collide and stick," explained Geers. (siliconrepublic.com)
The researchers reasoned that the downrange plume and the conical impact ejecta produced the dust particles, which sunlight pushed away from the asteroid. (astronomy.com)
The dust trap provides a safe haven for the tiny dust particles in the disc, allowing them to clump together and grow to sizes that allow them to survive on their own. (seculartalk.net)
The green area is the dust trap, where the bigger particles accumulate. (seculartalk.net)
After analyzing the data, the team ruled out the possibility that the rings and gaps were caused by ice lines , which are pressure changes created by chemical variations in the disk's dust particles. (discovermagazine.com)
This could explain how the ice-covered dust particles that swirl around a newborn star clump together. (newscientist.com)
Philosophical naturalists maintain that stars and galaxies were formed by gravitational attraction between dust particles in debris-filled space. (icr.org)
The star has properties very much like our Sun except that it is 45 times younger and is orbited by hundreds of thousands of times more dust than our Sun. The star is also one of the very few solar-type stars known to be orbited by warm dust particles. (gemini.edu)
The astronomers analyzing the emission from countless microscopic dust particles propose that the most likely explanation is they were pulverized in the violent collision of planets or "planetary embryos. (gemini.edu)
Song calls the dust particles the "building blocks of planets," which accumulate into comets and small asteroid-size bodies, and then clump together to form planetary embryos, and finally full-fledged planets. (gemini.edu)
[1] [2] Most cosmic dust particles measure between a few molecules and 0.1 mm (100 μm ), such as micrometeoroids . (wikipedia.org)
When infrared astronomy began, the dust particles were observed to be significant and vital components of astrophysical processes. (wikipedia.org)
Cosmic dust can be detected by remote sensing methods that utilize the radiative properties of cosmic dust particles, c.f. (wikipedia.org)
A storm of tiny dust particles has engulfed much of Mars over the last two weeks and prompted NASA's Opportunity rover to suspend science operations. (acm.org)
The dust was relatively fine, with particles ranging from 0.8 to 8.0 micrometers in diameter, and is thought to have formed when the asteroid made contact with the granite and gneiss rock in the Yucatán Peninsula. (extremetech.com)

Although the Herschel Space Observatory completed its mission in April 2013, the combination of data in the Herschel archive, with future observations from the newly commissioned Atacama Large Millimeter/submillimeter Array ( ALMA ) in Chile, will help astronomers to further unveil the mystery of cosmic dust in galaxies in the years to come. (scitechdaily.com)
Artificial stars, also called laser guide stars , can help astronomers correct these adaptive optics systems. (space.com)
Follow-up with future missions like NASA's James Webb Space Telescope may help astronomers tease apart the ring's constituent parts. (scienceblog.com)

It can actually be greater than the gravitational force of the star, and the dust grains will just float away from the stellar system," he said. (kpbs.org)
Led by Dr. Luca Cortese from Swinburne University of Technology in Melbourne, Australia, the team used the Herschel Space Observatory to observe galaxies at far‐infrared and sub‐millimeter wavelengths and captured the light directly emitted by dust grains. (scitechdaily.com)
These dust grains are believed to be fundamental ingredients for the formation of stars and planets, but until now very little was known about their abundance and physical properties in galaxies other than our own Milky Way ," said Dr. Cortese. (scitechdaily.com)
The two cameras on board the Herschel satellite, SPIRE and PACS, allowed astronomers to probe different frequencies of dust emission, which bear imprints on the physical properties of the grains and therefore were critical for this study. (scitechdaily.com)
As dust is heated by starlight, we knew that the frequencies at which grains emit should be related to a galaxy's star formation activity. (scitechdaily.com)
The interstellar medium - the material between the stars - is composed of gas and grains of cosmic dust, rather like fine sand or soot. (eso.org)
However, the gas is mostly hydrogen and relatively difficult to detect, so astronomers often search for these dense regions by looking for the faint heat glow of the cosmic dust grains. (eso.org)
The disc contains a cashew-nut-shaped region in its southern part, which traps millimeter-sized dust grains that can come together and grow into kilometer-sized objects like comets, asteroids, and potentially even planets. (seculartalk.net)
This region, which likely formed as a result of a newly born planet or small companion star located between the star and the dust trap, retains large numbers of millimeter-sized dust grains that can come together and grow into kilometer-sized objects like comets, asteroids and potentially even planets. (seculartalk.net)
Dust extinction measurements provide important constraints on the size ,composition, shape, and abundance of dust grains and an empirical model to account of the effects of extinction on astrophysical objects. (speakerdeck.com)
For decades our understanding of dust grains was strongly biased by measurements in our Galaxy and the ultraviolet (UV). (speakerdeck.com)
The comet, which is most likely pancake-shaped, is the first known object other than dust grains to visit our solar system from another star. (eurekalert.org)
Thousands of tons of cosmic dust are estimated to reach Earth's surface every year, [4] with most grains having a mass between 10 −16 kg (0.1 pg) and 10 −4 kg (0.1 g). [4] The density of the dust cloud through which the Earth is traveling is approximately 10 −6 dust grains/m 3 . (wikipedia.org)
physics ( solid-state , electromagnetic theory , surface physics, statistical physics , thermal physics ), fractal mathematics , surface chemistry on dust grains, meteoritics , as well as every branch of astronomy and astrophysics . (wikipedia.org)

All that dust makes life difficult for astronomers who are trying to understand all the radiation in the center of the Milky Way, and what exactly its source is. (universetoday.com)
Studying the galaxy core is very difficult for astronomers. (universetoday.com)

A group of astronomers led by Khyati Malhan of the Max Planck Institute for Astronomy has created an atlas of mergers of smaller galaxies with our home galaxy, the Milky Way. (mpia.de)
Thanks to the new images, the group of astronomers now think that there is a 'dust trap' there. (siliconrepublic.com)
Now a group of astronomers led by Olga Zakhozhay (Max Planck Institute for Astronomy, Heidelberg, Germany and Main Astronomical Observatory, National Academy of Sciences of Ukraine, Kyiv, Ukraine) discovered an exoplanet named HD 114082 b with a peculiar set of properties that lets scientists scratch their heads. (mpia.de)

The disappearance of a field of space dust around a distant star has rattled theories of how planets are formed. (kpbs.org)
Scientists believe space dust is the stuff that planets are made of. (kpbs.org)
The dust was thought to be due to collisions between forming planets, a normal part of planet formation. (scitechdaily.com)
A plausible story, consistent with the observations and with general ideas for how planets form, is that two large rocky objects collided at high speed, spewing vast amounts of dust into the debris disk. (arizona.edu)
These unseen newborn planets are stirring up dust around TW Hydrae about 200 light years from Earth. (independent.co.uk)
Astronomers believe they have found evidence of two planets under construction in a distant young star around 200 light years away from Earth . (independent.co.uk)
However, they added any inner planets would be difficult to detect because their light would be lost in the glare of the star and the surrounding dust would dim their reflected light. (independent.co.uk)
By finding dust traps orbiting even closer to their star, we may be able to see planets forming," added Geers. (siliconrepublic.com)
In a vast cloud of dust and gas 450 light-years from Earth in the Taurus constellation, scientists have found evidence of a treasure trove of super-Earths and Neptune-sized planets. (discovermagazine.com)
The team observed and imaged 32 stars in the region that are surrounded by protoplanetary disks - rotating disks of dust and gas that surround young stars and often develop objects like planets. (discovermagazine.com)
But this study showed that it is possible to peer through the thick gas and dust in a protoplanetary disk to find planets indirectly through the path their orbits leave. (discovermagazine.com)
How Do Astronomers Draw Distant Planets? (discovermagazine.com)
How planets and comets begin to form is a problem that has long bugged astronomers. (newscientist.com)
With the power of the Gemini South Adaptive Optics Imager ( GSAOI ) on Gemini South , one half of the International Gemini Observatory , operated by NSF's NOIRLab, [2] astronomers have observed the first direct evidence of a dying star expanding to engulf one of its planets. (gemini.edu)
"These observations provide a new perspective on finding and studying the billions of stars in our Milky Way that have already consumed their planets," says Ryan Lau, NOIRLab astronomer and co-author on this study, which is published in the journal Nature . (gemini.edu)
Astronomers have found evidence for the formation of young rocky planets around the star HD 23514 located in the well-known Pleiades (Seven Sisters) star cluster that is easily visible in the current evening sky. (gemini.edu)
[14] For example, cosmic dust can drive the mass loss when a star is nearing the end of its life , play a part in the early stages of star formation , and form planets . (wikipedia.org)

Cosmic dust is heated by starlight to temperatures of only a few tens of degrees above absolute zero , and can thus be only seen at far‐infrared/sub‐millimeter wavelengths. (scitechdaily.com)
Collage of galaxies in the Herschel Reference Survey, the largest census of cosmic dust in the local Universe. (scitechdaily.com)
Astronomers have unveiled an unprecedented new atlas of the inner regions of the Milky Way, our home galaxy, peppered with thousands of previously undiscovered dense knots of cold cosmic dust - the potential birthplaces of new stars. (eso.org)
Newswise - The European Southern Observatory's Very Large Telescope Interferometer (ESO's VLTI) has observed a cloud of cosmic dust at the centre of the galaxy Messier 77 that is hiding a supermassive black hole. (newswise.com)
These black holes feed on large volumes of cosmic dust and gas. (newswise.com)
By making extraordinarily detailed observations of the centre of the galaxy Messier 77 , also known as NGC 1068, Gámez Rosas and her team detected a thick ring of cosmic dust and gas hiding a supermassive black hole. (newswise.com)
Lintott, C. Cosmic dust disc to force rethink . (icr.org)
Cosmic dust - also called extraterrestrial dust , space dust , or star dust - is dust that occurs in outer space or has fallen onto Earth . (wikipedia.org)
Cosmic dust contains some complex organic compounds (amorphous organic solids with a mixed aromatic - aliphatic structure) that could be created naturally, and rapidly, by stars . (wikipedia.org)
Cosmic dust was once solely an annoyance to astronomers, as it obscures objects they wished to observe. (wikipedia.org)
Zodiacal light caused by cosmic dust. (wikipedia.org)
Cosmic dust of the Andromeda Galaxy as revealed in infrared light by the Spitzer Space Telescope . (wikipedia.org)
A wide range of methods is available to study cosmic dust. (wikipedia.org)
Cosmic dust can also be detected directly ('in-situ') using a variety of collection methods and from a variety of collection locations. (wikipedia.org)

An infrared image obtained at the Gemini telescope in Chile on May 1, 2012, confirmed that the dust has now been gone for two-and-a-half years. (scitechdaily.com)
Made using observations from the APEX telescope in Chile, this survey is the largest map of cold dust so far, and will prove an invaluable map for observations made with the forthcoming ALMA telescope, as well as the recently launched ESA Herschel space telescope. (eso.org)
This new guide for astronomers, known as the APEX Telescope Large Area Survey of the Galaxy (ATLASGAL) shows the Milky Way in submillimetre-wavelength light (between infrared light and radio waves [1] ). (eso.org)
In a collaboration between Maunakea's giant Keck telescope and the much smaller but more awesomely named Dragonfly Telephoto Array, astronomers have discovered 47 ultra-diffuse, tissue-dense galaxies (UDGs). (listverse.com)
The researchers analysed data captured by the Hubble Space Telescope and found two shadows in the gas-and-dust disk of the TW Hydrae star system. (independent.co.uk)
Dr John Debes, an astronomer at the Space Telescope Science Institute in the US, who is also the principal investigator and lead author on the paper, said: "We found out that the shadow had done something completely different. (independent.co.uk)
Images of the triple dust tails were taken on the 12th and 19th of December 2010 using the Murikabushi Telescope. (astronomy.com)
Soon after reports of Scheila's unusual brightness, the current research team used the Subaru Prime Focus Camera (Suprime-Cam) on the 8.2-meter Subaru Telescope, the 1.05-meter Ishigakijima Astronomical Observatory Murikabushi Telescope, and the University of Hawaii 2.2-meter Telescope to make optical observations of these mysterious dust tails over a three-month period. (astronomy.com)
The top of Figure 1 shows images of the development of the dust tails taken by the Murikabushi Telescope on the 12th and 19th of December 2010. (astronomy.com)
However, once a telescope is built, how do astronomers use it? (examiner.com.au)
there are only a handful of very large telescopes (not to be confused with the "Very Large Telescope") in the world, so how do astronomers agree who gets to use it? (examiner.com.au)
Astronomers can request the so called "service mode", where they give all the details to the telescope operator months beforehand. (examiner.com.au)
Scientists from observatories that own the telescopes, or astronomers who helped build some of the scientific equipment attached to the telescope, generally get a set aside amount of time to use the telescope. (examiner.com.au)
Every six months or so, telescope operators put out a call for astronomers who are interested in using their telescope in the following six months. (examiner.com.au)
Each astronomer then writes a proposal for why they want to use that telescope, detailing why their science will be interesting, why that telescope, and how much time. (examiner.com.au)
Astronomers using the Gemini South telescope in Chile, operated by NSF's NOIRLab, have observed the first evidence of a dying Sun-like star engulfing an exoplanet. (gemini.edu)
Using an infrared sensitive camera (MICHELLE) on the Gemini North Telescope, Joseph Rhee of UCLA and his collaborators have measured heat from hot dust surrounding a 100 million year old star in the bright star cluster. (gemini.edu)
Elsewhere, the Spitzer Space Telescope team found a surprise with the help of high school students: a dust disk around a binary star. (icr.org)
Debes is an astronomer at the Space Telescope Science Institute in Baltimore. (scienceblog.com)

This is good news for those who study polarization of the cosmic microwave background, since the signal from spinning nanodiamonds would be weakly polarized at best," said Brian Mason, an astronomer at the National Radio Astronomy Observatory and coauthor on the paper. (wattsupwiththat.com)
We know that dust blocks those wavelengths, so we decided to look for evidence of these chemicals at longer wavelengths that can easily pass through dust," said Claire Chandler of the National Radio Astronomy Observatory, and principal investigator on the project. (pressrelease.wiki)

Accordingly, the ATLASGAL map includes the denser central regions of our galaxy, in the direction of the constellation of Sagittarius - home to a supermassive black hole ( eso0846 ) - that are otherwise hidden behind a dark shroud of dust clouds. (eso.org)
In order to study the center of the galaxy, astronomers used to have to look at other galaxies that were similar in structure to the Milky Way. (universetoday.com)
But in the last few decades, astronomers have been finally able to study the galaxy core in other wavelengths, like infrared and x-rays, which can pass through gas and dust. (universetoday.com)
Astronomers used to think that massive tidal forces from the supermassive black hole at the center of the galaxy would prevent their formation, but there they are. (universetoday.com)
Astronomer Charles Messier discovered the spiral galaxy M58 in 1779. (cnet.com)
Because of the high amounts of gas and dust, there are numerous star-forming regions in the galaxy, especially in its nucleus and arms," NASA says . (cnet.com)
A new study using data from the Atacama Large Millimeter/submillimeter Array (ALMA) shows that this galaxy is syphoning dust and other material from three of its smaller galactic neighbors. (nasa.gov)
Most of W2246-0526's record-breaking luminosity comes not only from stars, but also a collection of hot gas and dust concentrated around the center of the galaxy. (nasa.gov)
This galaxy is notable for its dominant nuclear bulge, composed primarily of mature stars, and its nearly edge-on disc composed of stars, gas, and intricately structured dust. (lu.se)

Artist's conceptualization of the TYC 8241 2652 system as it might appear now after most of the surrounding dust has disappeared - based on observations by the Gemini Observatory and other ground and space-based observatories. (scitechdaily.com)
Although referred to as the seven sisters, "the cluster actually contains some 1,400 stars," said Inseok Song, a staff scientist at Caltech's Spitzer Science Center, former astronomer with the Gemini Observatory, and a co-author of the research. (gemini.edu)

Recent GBT and ATCA observations have identified the telltale radio signal of diamond dust around 3 such stars, suggesting they are a source of the so-called anomalous microwave emission. (wattsupwiththat.com)
Based on their observations, the astronomers estimate that up to 1-2 percent of the total carbon in these protoplanetary disks has gone into forming nanodiamonds. (wattsupwiththat.com)
The dust disappearance at TYC 8241 2652 was so bizarre and so quick, initially I figured that our observations must simply be wrong in some strange way. (scitechdaily.com)
The first shadow was spotted in observations from 2016 while the second shadow appeared five years later, puzzling astronomers. (independent.co.uk)
The emission signaling the presence of this molecule (real observations shown in blue) is clearly stronger in the disc's dust trap. (seculartalk.net)
the number of hours requested is larger than the number available, so astronomers with the least appealing or least feasible observations are not granted time. (examiner.com.au)
Though past observations have confirmed the aftermath of planetary engulfments [1], astronomers have never caught one in the act, until now. (gemini.edu)
New observations using the Atacama Large Millimeter/submillimeter Array (ALMA) in Chile reveal distinct trails of dust being pulled from three smaller galaxies into W2246-0526. (nasa.gov)

And some of that dust is caught in orbit around the asteroid, scientists announced March 19 at the Lunar and Planetary Science Conference. (sciencenews.org)
UA Planetary Sciences graduate student Huan Meng, and Steward Observatory astronomers Kate Su and George Rieke, along with former Steward grad student Wiphu Rujopakarn, and their colleagues, have discovered a dust eruption around the young star NGC 2547-ID8. (arizona.edu)
A research team of planetary scientists and astronomers has explained the formation of peculiar triple dust tails from the asteroid 596 Scheila. (astronomy.com)
By studying countless stars at various stages of their evolution, astronomers have been able to piece together an understanding of the life cycle of stars and how they interact with their surrounding planetary systems as they age. (gemini.edu)
Rhee and team members Inseok Song of the Spitzer Science Center and Benjamin Zuckerman of UCLA interpret the presence of so much hot dust as a result of colliding planetary embryos leading to the conclusion that a recent collision occurred between relatively large rocky bodies. (gemini.edu)
intergalactic dust , interstellar dust, interplanetary dust (as in the zodiacal cloud ), and circumplanetary dust (as in a planetary ring ). (wikipedia.org)
Solar System dust includes comet dust , planetary dust (like from Mars), [3] asteroidal dust , dust from the Kuiper belt , and interstellar dust passing through the Solar System. (wikipedia.org)
In the Solar System , dust plays a major role in the zodiacal light , Saturn 's B Ring spokes , the outer diffuse planetary rings at Jupiter , Saturn, Uranus and Neptune , and comets . (wikipedia.org)
in the clouds of the diffuse interstellar medium , in molecular clouds , in the circumstellar dust of young stellar objects , and in planetary systems such as the Solar System , where astronomers consider dust as in its most recycled state. (wikipedia.org)
Planetary scientists in Belgium, the Netherlands, the United Kingdom, and the United States say the asteroid's impact sent dust and other debris into the atmosphere. (extremetech.com)

Scientists have spotted two shadows in a disk of gas and dust surrounding TW Hydrae, thought to be cast by two smaller disks nestled inside the star system. (independent.co.uk)
According to the scientists, this is the first time that such a dust trap has been clearly observed and modelled. (siliconrepublic.com)
Based on these images of the linear structure, the scientists determined a dust emission date of December 3, 2010 (plus or minus one day). (astronomy.com)
If anything, it's a gift to scientists: Astronomers will fire powerful lasers into the gassy Perseid meteor shower debris, creating artificial stars that help researchers snap clearer photos of the cosmos. (space.com)
But the fact that it was accelerating away from the sun in a way that astronomers could not explain perplexed scientists, leading some to suggest that it was an alien spaceship . (eurekalert.org)

An international team of astronomers has completed a benchmark study of more than 300 galaxies, producing the largest census of dust in the local Universe, the Herschel Reference Survey. (scitechdaily.com)
The collage is presented with dust-rich, spiral and irregular galaxies in the top left, and giant, dust-poor elliptical galaxies in the bottom-right. (scitechdaily.com)
The data obtained for the Herschel Reference Survey have been made publicly available to allow further studies of dust properties in nearby galaxies. (scitechdaily.com)
Applies to galaxies, circumstellar dust, etc. (speakerdeck.com)
That object turned out to be a supermassive black hole, with 4.1 million times the mass of the Sun. Since that discovery, astronomers have located supermassive black holes in the galactic cores of many galaxies, and theorized that they're in all galaxies. (universetoday.com)
dust bridges connect the other two galaxies to W2246-0526. (nasa.gov)
Astronomers have previously observed galaxies merging with or accreting matter from their neighbors in the nearby universe. (nasa.gov)
The element is important for tracing the galaxy's development, as the theories the astronomers have about how stars are formed and galaxies develop indicate that young stars have more of the heavy elements, as heavy elements are formed to an increasing extent over time in the universe. (lu.se)

For their research, the astronomers used the GBT and ATCA to survey 14 young stars across the Milky Way for hints of anomalous microwave emission. (wattsupwiththat.com)
Nothing like this has ever been seen in the many hundreds of stars that astronomers have studied for dust rings," said co-author Ben Zuckerman of UCLA , whose research is funded by NASA. (scitechdaily.com)
The newly released map also reveals thousands of dense dust clumps, many never seen before, which mark the future birthplaces of massive stars. (eso.org)
Astronomers acting on a hunch have likely resolved a mystery about young, still-forming stars and the regions rich in organic molecules closely surrounding some of them. (pressrelease.wiki)
You can see the two central stars quite clearly in this image, the dust-enshrouded white dwarf in the red and its companion to its left. (cosmosmagazine.com)
There are also clouds of dust and gas that block our view of dim or faraway stars. (popsci.com)
It's made up of things like stars, dust, gas… and dark matter. (popsci.com)
When astronomers look at the places where stars are born , they see tiny stars are much more common than massive ones. (popsci.com)
These disks are the byproducts of the large clouds of dust and gas that form stars. (theverge.com)
The reason astronomers are so fond of this particular pollution layer is because we can make it glow by using a sodium laser to excite this sodium and produce temporary, artificial stars wherever we like," Trujillo added. (space.com)
Believe it or not, there aren't enough stars in the sky for astronomers! (space.com)
This round, dense collection of stars is known as the globular star cluster Messier 75 , which astronomer Charles Messier added to his astronomical catalog in 1780. (cnet.com)
Moving into the realm of the stars, the Orion nebula 'continues to surprise' astronomers, according to Science . (icr.org)
In this case, that means gas and dust to form stars and to replenish the cloud around the central black hole. (nasa.gov)
Nebulae are great clouds of gas and dust in the spaces between stars. (bellaonline.com)
New stars are forming in those giant dust clouds. (bellaonline.com)
It concerns three stars that are difficult to study because they are extremely far away from our solar system, and hidden behind enormous clouds of dust and gas that block out light. (lu.se)
In our study we have been able to date three of these stars as relatively young, at least as far as astronomers are concerned, with ages of 100 million to about 1 billion years. (lu.se)
To determine the level of iron, the astronomers observed the stars' spectra in infrared light which, compared with optical light, are parts of the light spectrum that can more easily shine through the densely dust-laden parts of the Milky Way. (lu.se)
In views of this evocative object in visible light the core of the nebula is completely hidden behind obscuring dust, but in this VISTA view, taken in infrared light, the cluster of very young stars at the object's heart is revealed. (lu.se)

This is the first clear detection of anomalous microwave emission coming from protoplanetary disks," said David Frayer a coauthor on the paper and astronomer with the Green Bank Observatory. (wattsupwiththat.com)
However, questions remained about the date when the dust emission occurred and how the triple dust tails formed. (astronomy.com)
To explain the formation of Scheila's triple dust tails, the research team conducted a computer simulation of Scheila's dust emission on December 3. (astronomy.com)
The dust trap is about the same size as the area taken up by the methanol emission, shown on the bottom left. (seculartalk.net)
The emission appears to originate from dust located in the terrestrial planet zone between about 1/4 to two astronomical units (AUs) from the parent star HD 23514, a region corresponding to the orbits of Mercury and Mars in our solar system. (gemini.edu)

Supposedly, the more initial debris there is in the "protostar" dust cloud, the faster it moves towards star birth. (icr.org)
A volunteer working with the NASA-led Backyard Worlds: Planet 9 project has found the oldest and coldest known white dwarf - an old Earth-sized remnant of a sun-like star that has died - ringed by dust and debris. (scienceblog.com)

The Unified Model states that despite their differences, all AGNs have the same basic structure: a supermassive black hole surrounded by a thick ring of dust. (newswise.com)

As ground-based telescopes get bigger, they will need more advanced adaptive optics systems like Gemini's to let astronomers see clearly through a wider column of Earth's atmosphere, Trujillo explained. (space.com)
Sunday Space: How and when do astronomers use telescopes? (examiner.com.au)
Most telescopes can be accessed through the internet, so astronomers here at Mount Stromlo can access huge telescopes in Chile and Hawaii from the comfort of Canberra. (examiner.com.au)
While the relative dimensions were fairly certain, however, astronomers couldn't be sure of the actual size because it was too small and distant for telescopes to resolve. (eurekalert.org)
With modern telescopes, astronomers can see the difference between nebulae and other fuzzy objects. (bellaonline.com)

The astronomers accumulate observational 'snapshots' of dust at different stages of its life and, over time, form a more complete movie of the Universe's complicated recycling steps. (wikipedia.org)

Only in this case we're talking about enough dust to fill an inner solar system and it really is gone! (scitechdaily.com)
The regions, dubbed "hot corinos" by astronomers, are typically about the size of our solar system and are much warmer than their surroundings, though still quite cold by terrestrial standards. (pressrelease.wiki)
TW Hydrae gives astronomers a ringside seat to how our solar system may have looked during its formative years, they added. (independent.co.uk)
It was the first known visitor from outside our solar system, it had no bright coma or dust tail, like most comets, and a peculiar shape - something between a cigar and a pancake - and its small size more befitted an asteroid than a comet. (eurekalert.org)
In the Solar System , interplanetary dust causes the zodiacal light . (wikipedia.org)

A team of astronomers led by Olga Zakhozhay from the MPIA discovered a giant exoplanet around the Sun-like star HD 114082. (mpia.de)
With an age of only 15 million years, this super-Jupiter is the youngest exoplanet of its kind for which astronomers managed to determine its radius and mass. (mpia.de)

For decades, astronomers have puzzled over the exact source of a peculiar type of faint microwave light emanating from a number of regions across the Milky Way. (wattsupwiththat.com)
But for our own Milky Way, that knowledge is blocked by thick clouds of gas and dust. (universetoday.com)
Astronomers at the University of Arizona recently estimated that the Milky Way weighs about 960 billion times as much as our own sun . (popsci.com)
While examining an area near the center of the Milky Way, astronomers saw something they were not expecting. (icr.org)
"With these revolutionary new optical and infrared surveys, we are now witnessing such events happen in real time in our own Milky Way - a testament to our almost certain future as a planet," said Kishalay De, an astronomer at the Massachusetts Institute of Technology and lead author on the paper. (gemini.edu)

To my surprise, Debbie Elmegreen, president of the International Astronomical Union, said neither she nor her astronomer husband Bruce Elmegreen has ever even had an astronomy dream. (astronomy.com)
Astronomers report the findings in an upcoming issue of the Astrophysical Journal , published by the American Astronomical Society. (gemini.edu)

Led by Nienke van der Marel, a PhD student at Leiden Observatory in The Netherlands, the astronomers found a crescent-shaped cloud of dust to one side of the star, but did not see the symmetrical dust ring they expected. (siliconrepublic.com)

Astronomers have to probe through thick dust to see what's going on there. (universetoday.com)

The researchers realized that this was a rare opportunity: the disk was protruding out from its usual cover of thick dust. (universetoday.com)
In mid-June, Surveyor researchers reported finding dust clouds in the Hellas basin in the south. (sciencenews.org)
As one of the leading researchers of space dust, Angela Speck's work often deals with the minuscule, not the massive. (texasstandard.org)
These dust clouds blocked out so much sunlight that they had their own downstream effects, resulting in what the researchers call "catastrophic collapse. (extremetech.com)
Using paleoclimate simulations, the researchers measured how long the dust might have remained in the atmosphere, as well as how the clouds might have impacted the goings-on occurring on Earth's surface. (extremetech.com)

"The real nature of the dust clouds and their role in both feeding the black hole and determining how it looks when viewed from Earth have been central questions in AGN studies over the last three decades," explains Gámez Rosas. (newswise.com)

This strongly suggests that PAHs are not the mysterious source of anomalous microwave radiation, as astronomers once thought. (wattsupwiththat.com)
Now, a University of California, Berkeley, astrochemist and a Cornell University astronomer argue that the comet's mysterious deviations from a hyperbolic path around the sun can be explained by a simple physical mechanism likely common among many icy comets: outgassing of hydrogen as the comet warmed up in the sunlight. (eurekalert.org)

The images are presented in false color to highlight different dust temperatures, with blue and red representing colder and warmer regions respectively. (scitechdaily.com)
Slightly changing any of these parameters can give significantly different dust dynamical behavior. (wikipedia.org)

According to Zuckerman HD 23514, "…has hundreds of thousands of time as much dust as around our sun. (gemini.edu)

Our findings from a team of nearly 70 astronomers are published today in Nature Astronomy. (cosmosmagazine.com)
The findings have confirmed predictions made around 30 years ago and are giving astronomers new insight into "active galactic nuclei", some of the brightest and most enigmatic objects in the universe. (newswise.com)

NASA engineers received a transmission from Opportunity on Sunday morning, a positive sign despite the worsening dust storm. (acm.org)

Though we know that some type of particle is responsible for this microwave light, its precise source has been a puzzle since it was first detected nearly 20 years ago," said Jane Greaves, an astronomer at Cardiff University in Wales and lead author on a paper announcing this result in Nature Astronomy . (wattsupwiththat.com)

Can space dust help cool Earth? (texasstandard.org)
Space dust" redirects here. (wikipedia.org)
For other uses, see Space dust (disambiguation) . (wikipedia.org)
There are several methods to obtain space dust measurement . (wikipedia.org)

Comets are known to be made of dust and frozen ices. (esa.int)

The outburst from the engulfment lasted approximately 100 days and the characteristics of its lightcurve , as well as the ejected material, gave astronomers insight into the mass of the star and that of its engulfed planet. (gemini.edu)

Both occur inside a protoplanetary disk of gas and dust distributed around a young central star. (mpia.de)

I will discuss the results of a dedicated effort to expand our spectroscopic measurements of dust extinction to the far-UV, optical, near-infrared, and mid-infrared wavelength regimes. (speakerdeck.com)

The central white dwarf star of NGC3132, they realised, is enshrouded in dust. (cosmosmagazine.com)
Astronomers suspect this could be the first known white dwarf with multiple dust rings. (scienceblog.com)

This dust burns up in Earth's atmosphere, creating the streaks of meteors visible to observers on the ground. (space.com)
They found that the impact-induced dust clouds likely made Earth's atmosphere opaque for two years, making it virtually impossible for plants to perform photosynthesis. (extremetech.com)

Like Earth, warm dust absorbs the energy of visible starlight and reradiates that energy as infrared, or heat, radiation. (scitechdaily.com)
Astronomers had found some evidence to support the Unified Model before, including spotting warm dust at the centre of Messier 77. (newswise.com)

Using data from the Herschel satellite, astronomers completed the largest census of dust in the local Universe, the Herschel Reference Survey. (scitechdaily.com)
Co‐author of the work, Dr. Jacopo Fritz, from Ghent University in Belgium, said: "This affects our ability to accurately estimate how much dust is in the Universe. (scitechdaily.com)
Submillimetre light allows astronomers to see these dust clouds shining, even though they obscure our view of the Universe at visible light wavelengths. (eso.org)
Astronomers have discovered others from the early universe that weighed more than a billion times the mass of the sun. (discovermagazine.com)
It's this sodium layer, provided courtesy of meteors like the Perseids, that astronomers use to get the clearest views and understand the universe better. (space.com)
3 Hence, they are "a mystery" to astronomers who have yet to find a purely naturalistic explanation for the universe they see. (icr.org)
The light from W2246-0526 took 12.4 billion years to reach us, so astronomers are seeing the object as it was when our universe was only a tenth of its present age of 13.8 billion years. (nasa.gov)
The evolution of dust traces out paths in which the Universe recycles material, in processes analogous to the daily recycling steps with which many people are familiar: production, storage, processing, collection, consumption, and discarding. (wikipedia.org)
It has since revolutionised how astronomers and the general public see the Universe. (esa.int)

Astronomers using the new Atacama Large Millimeter/submillimeter Array (ALMA) in Chile have imaged a dust trap around a young star that's 400 light-years away from Earth. (siliconrepublic.com)
Thanks to time differences, it also means that astronomers here in Australia can observe the night sky in Chile during their normal working hours and don't need to work late. (examiner.com.au)

One possible explanation is the interaction that created the dust disk didn't involve just one close companion, but two. (cosmosmagazine.com)

The resulting image showed a roughly crab-shaped extended nebula, formed by symmetrical bubbles of gas and dust. (esa.int)
5. The gas in a nebula glows if a bright star energizes it, and dust can reflect starlight. (bellaonline.com)

The astronomers also note that the infrared light coming from these systems matches the unique signature of nanodiamonds. (wattsupwiththat.com)

BOULDERY BENNU Near-Earth asteroid Bennu (shown in multiple views from the OSIRIS-REx spacecraft) surprisingly erupts plumes of dust from its rocky surface. (sciencenews.org)
THE WOODLANDS, Texas - Like the "Peanuts" character Pigpen, the near-Earth asteroid Bennu moves around in a cloud of its own dust. (sciencenews.org)
NASA's OSIRIS-REx spacecraft has watched Bennu spit out plumes of dust 11 times since the spacecraft arrived at the asteroid in December 2018. (sciencenews.org)
Three streams of dust appeared to trail from the asteroid. (astronomy.com)
As the three streaks of dust streamed from the asteroid, their surface brightness decreased. (astronomy.com)

Enormous amounts of dust known to circle the star are unexpectedly nowhere to be found. (scitechdaily.com)
Astronomers have been puzzled by the fact that they have found evidence in some of these binary systems for a hot corino around one of the protostars but not the other. (pressrelease.wiki)
The astronomers noted that all the chemicals found in hot corinos had been found by detecting the "fingerprints" at radio frequencies corresponding to wavelengths of only a few millimeters. (pressrelease.wiki)
Astronomer Charles Messier discovered M88 in 1781 on a particularly busy night when he also found eight other objects that he added to his famous catalog. (cnet.com)

Annotated image from the Atacama Large Millimeter/submillimeter Array (ALMA) showing the dust trap in the disc that surrounds the system Oph-IRS 48. (seculartalk.net)

But it is only when clumps of dust and ice grow to a few kilometres across that their gravity becomes strong enough to drag in new material. (newscientist.com)

Animation showing the disappearance of dust from the TYC 8241 2652 system. (scitechdaily.com)

Astronomers have been watching a burgeoning star, tongue-twistingly named W75N(B)-VLA2, as it matures into a huge, adult stellar body. (listverse.com)

MATISSE can see a broad range of infrared wavelengths, which lets us see through the dust and accurately measure temperatures. (newswise.com)

That's because the regions surrounding the central core are shrouded in thick gas and dust that blocks visible light. (universetoday.com)

The dust absorbs red light, but reflects blue light. (bellaonline.com)

IRS 48, located 444 light-years away in the constellation Ophiuchus, has been the subject of numerous studies because its disc contains an asymmetric, cashew-nut-shaped "dust trap. (seculartalk.net)

Starlight affects dust in a different way. (bellaonline.com)

Looking at the images, given the size, not moving as you rotate the camera and (lack of) sharpness, I would suspect that the dust spots are on the surface of the camera window. (stargazerslounge.com)

Artist's impression of dust formation around a supernova explosion. (wikipedia.org)

Astronomers have discovered more than 5000 exoplanets, of which about 15% are gas giants with masses of at least that of Jupiter. (mpia.de)

Anatomy1

Organisms5

Diseases8

Chemicals and Drugs12

Analytical, Diagnostic and Therapeutic Techniques and Equipment1

Phenomena and Processes3

Disciplines and Occupations1

Technology, Industry, Agriculture11

Health Care12

French astronomer Charles Messier3

Particles18

Help astronomers3

Grains14

Difficult for astronomers2

Group of astronomers3

Planets17

Cosmic dust14

Telescope19

National Radio Astro2

Galaxy9

Gemini Observatory2

Observations8

Planetary10

Scientists5

Galaxies8

Stars20

Emission5

Debris2

Supermassive blac1

Telescopes5

Accumulate1

Solar system5

Exoplanet2

Milky Way5

Astronomical2

Observatory1

Probe1

Researchers5

Decades1

Mysterious2

Different dust2

Zuckerman1

Findings2

NASA1

Astronomy1

Space dust4

Comets1

Insight1

Protoplanetary disk1

Extinction1

White dwarf2

Earth's2

Warm dust2

Universe9

Chile2

Explanation1

Nebula2

Infrared light1

Asteroid5

Found4

ALMA1

Clumps1

Disappearance1

Stellar1

Wavelengths1

Thick gas and dust1

Absorbs1

Trap1

Starlight1

Suspect1

Artist's1

Exoplanets1