Circumbinary planet: A circumbinary planet is a planet that orbits two stars instead of one.Paleoproterozoic: The Paleoproterozoic (; also Palaeoproterozoic) is the first of the three sub-divisions (eras) of the Proterozoic occurring (2.5–1.Lunar magma ocean: According to the giant impact hypothesis a large amount of energy was liberated in the formation of the Moon and it is predicted that as a result a large portion of the Moon was once completely molten, forming a lunar magma ocean. Evidence for the magma ocean hypothesis comes from the highly anorthositic compositions of the crust in the lunar highlands, as well as the existence of rocks with a high concentration of the geochemical component referred to as KREEP.Carbon chauvinism: Carbon chauvinism is a neologism meant to disparage the assumption that the chemical processes of hypothetical extraterrestrial life must be constructed primarily from carbon (organic compounds) because carbon's chemical and thermodynamic properties render it far superior to all other elements.Submillimetre astronomy: Submillimetre astronomy or submillimeter astronomy (see spelling differences) is the branch of observational astronomy that is conducted at submillimetre wavelengths (i.e.PG 1159 star: A PG 1159 star, often also called a pre-degenerate,Jaschek & Jaschek: CARBON C is a star with a hydrogen-deficient atmosphere that is in transition between being the central star of a planetary nebula and being a hot white dwarf. These stars are hot, with surface temperatures between 75,000 K and 200,000 K,Observational constraints on the evolutionary connection between PG 1159 stars and DO white dwarfs, S.Shiva crater: The Shiva Crater is a geologic structure, which is hypothesized by Sankar ChatterjeeChatterjee, S. (1997) Multiple impacts at the KT boundary and the death of the dinosaurs.Supernova Early Warning System: The SuperNova Early Warning System (SNEWS) is a network of neutrino detectors designed to give early warning to astronomers in the event of a supernova in the Milky Way Galaxy, our home galaxy, or a nearby galaxy such as the Large Magellanic Cloud or the Canis Major Dwarf Galaxy. Enormous numbers of neutrinos are produced in the core of a red giant star as it collapses on itself.Meanings of minor planet names: 154001–155000: ==List of minor planets==NebulaNearly Neptune: Nearly Neptune is a juvenile science fiction novel, the twelfth in Hugh Walters' Chris Godfrey of U.N.Stratosphere: The stratosphere is the second major layer of Earth's atmosphere, just above the troposphere, and below the mesosphere. It is stratified in temperature, with warmer layers higher up and cooler layers farther down.Chondrule: Chondrules in the chondrite Grassland|200px|thumb|Chondrules in the chondrite Grassland. A millimeter scale is shown.Mars Orbiter Laser Altimeter: [Martian hemispheres by MOLA.jpg|right|thumb|260px|MOLA topographic images of the two hemispheres of Mars.Primordial sandwich: The concept of the primordial sandwich was proposed by the chemist Günter Wächtershäuser to describe the possible origins of the first cell membranes, and, therefore, the first cell.A. Frank Glahn: A. Frank Glahn (1865–1941), was a German mysticist, Germanic revivalist and most notably a pendulum dowser.Primordial soup: "Primordial soup" is a term introduced by the Soviet biologist Alexander Oparin. In 1924, he proposed a theory of the origin of life on Earth through the transformation, during the gradual chemical evolution of molecules that contain carbon in the primordial soup.Index of geology articles: This is a list of all articles related to geology that cannot be readily placed on the following subtopic pages:Tidal Wave (Sub Focus song)Moonlight: [22-12-47-moonlight.jpg|thumb|A photograph taken by moonlight with an exposure time of fifty minutes.Pluto Water: Pluto Water was a trademark for a strongly laxative natural water product which was very popular in the United States in the early 20th century. The water's high native content of mineral salts generally made it effective within one hour of ingestion, a fact the company emphasized in their promotional literature.Robotic spacecraft: 250px|right|thumb|An artist's interpretation of the [[MESSENGER spacecraft at Mercury]]List of Antarctic ice streams: This is a list of Antarctic ice streams.Christmas on the International Space Station: Christmas on the International Space Station covers the celebration of Christmas on the International Space Station. Christmas is a seasonal religious celebration, and is celebrated each year by the International Space Station crew, their families, and ground-staff.Ganymede (moon)Protein quaternary structure: In biochemistry, quaternary structure is the number and arrangement of multiple folded protein subunits in a multi-subunit complex. It includes organisations from simple dimers to large homooligomers and complexes with defined or variable numbers of subunits.Sunspots (economics): In economics, the term sunspots (or sometimes "a sunspot") usually refers to an extrinsic random variable, that is, a random variable that does not affect economic fundamentals (such as endowments, preferences, or technology). Sunspots can also refer to the related concept of extrinsic uncertainty, that is, economic uncertainty that does not come from variation in economic fundamentals.Alkali: In chemistry, an alkali (; from Arabic: al-qaly القلي, القالي , “ashes of the saltwort”) is a basic, ionic salt of an alkali metal or alkaline earth metal chemical element. An alkali also can be defined as a base that dissolves in water.Interstellar cloud: Interstellar cloud is the generic name given to an accumulation of gas, plasma, and dust in our and other galaxies. Put differently, an interstellar cloud is a denser-than-average region of the interstellar medium.Ultra-high-energy cosmic ray: In astroparticle physics, an ultra-high-energy cosmic ray (UHECR) is a cosmic ray particle with a kinetic energy greater than eV, far beyond both its rest mass and energies typical of other cosmic ray particles.List of geological phenomena: A geological phenomenon is a phenomenon which is explained by or sheds light on the science of geology.Countercurrent chromatographyAnoxic event: Oceanic anoxic events or anoxic events (anoxia conditions) refer to intervals in the Earth's past where portions of oceans become depleted in oxygen (O2) at depths over a large geographic area. During some of these events, euxinia develops - euxinia refers to anoxic waters that contain hydrogen sulfide.Alliance for Zero Extinction: Formed in 2000 and launched globally in 2005, the Alliance for Zero Extinction (AZE) comprises 100 non-governmental biodiversity conservation organizations working to prevent species extinctions by identifying and safeguarding sites where species evaluated to be Endangered or Critically Endangered under International Union for Conservation of Nature (IUCN) criteria only exist at one location on earth."Zero Extinction - Home.EcosystemAppropriation (By Any Other Name): June 13, 2005