|
Galileo Regio
Galileo Regio is a large, dark surface feature on Jupiter's moon Ganymede. It is a region of ancient dark material that has been broken apart by tectonism and is now surrounded by younger, brighter material (such as that of Uruk Sulcus) that has been upwelling from Ganymede's interior. It is thought to be some 4 billion years old and is heavily cratered and palimpsested, but also has a unique distribution of furrows and smooth terrain that has been the subject of conflicting speculation regarding cause or origin. The distribution of smooth terrain on Galileo Regio suggests that the ancient crust of Ganymede was relatively thin in the equatorial region and thickened poleward in this area. The age relationships, morphology, and geometry of the furrow systems do not favor an origin by impact or tidal stressing. A possible, but speculative, origin is crustal uplift caused by a plume-like convection cell in a fluid mantle underlying a thin crust. Stratigraphic and morphologic relatio ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ganymede G1 True 2
Ganymede most commonly refers to: *Ganymede (mythology), Trojan prince in Greek mythology * Ganymede (moon), Jupiter's largest moon, named after the mythological character Ganymede, Ganymed or Ganymedes may also refer to: * Ganymede (band), a 2000s American band * Ganymed (band), a 1970s Austrian disco band *Ganymedes (eunuch), tutor of Arsinoe IV of Egypt and adversary to Julius Caesar * "Ganymed" (Goethe), a poem by Goethe *Ganymede (software), a GPL-licensed network directory management system *1036 Ganymed, an asteroid * , British prison hulk that was moored in Chatham Harbour, Kent, England * , a United States Navy vessel in World War II * Rosalind (''As You Like It'') or Ganymede, a character in ''As You Like It'' by William Shakespeare * Ganymede, a Marvel Comics character See also *Ganymede City, a term coined by Arthur C. Clarke in his science fiction novel ''3001: The Final Odyssey'' *Ganymede Heights, rounded ridges with extensive rock outcrops on the eastern side of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Galileo Galilei
Galileo di Vincenzo Bonaiuti de' Galilei (15 February 1564 – 8 January 1642) was an Italian astronomer, physicist and engineer, sometimes described as a polymath. Commonly referred to as Galileo, his name was pronounced (, ). He was born in the city of Pisa, then part of the Duchy of Florence. Galileo has been called the "father" of observational astronomy, modern physics, the scientific method, and modern science. Galileo studied speed and velocity, gravity and free fall, the principle of relativity, inertia, projectile motion and also worked in applied science and technology, describing the properties of pendulums and " hydrostatic balances". He invented the thermoscope and various military compasses, and used the telescope for scientific observations of celestial objects. His contributions to observational astronomy include telescopic confirmation of the phases of Venus, observation of the four largest satellites of Jupiter, observation of Satur ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ganymede (moon)
Ganymede, a satellite of Jupiter (Jupiter III), is the largest and most massive of the Solar System's moons. The ninth-largest object (including the Sun) of the Solar System, it is the largest without a substantial atmosphere (albeit not the most massive one, which is Mercury). It has a diameter of , making it 26 percent larger than the planet Mercury by volume, although it is only 45 percent as massive. Possessing a metallic core, it has the lowest moment of inertia factor of any solid body in the Solar System and is the only moon known to have a magnetic field. Outward from Jupiter, it is the seventh satellite and the third of the Galilean moons, the first group of objects discovered orbiting another planet. Ganymede orbits Jupiter in roughly seven days and is in a 1:2:4 orbital resonance with the moons Europa and Io, respectively. Ganymede is composed of approximately equal amounts of silicate rock and water. It is a fully differentiated body with an iron-rich, liqui ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
USGS Astrogeology Science Center
The Astrogeology Science Center is the entity within the United States Geological Survey concerned with the study of planetary geology and planetary cartography. It is housed in the Shoemaker Building in Flagstaff, Arizona. The Center was established in 1963 by Eugene Merle Shoemaker to provide lunar geologic mapping and to assist in training astronauts destined for the Moon as part of the Apollo program. Since its inception, the Astrogeology Science Center has participated in processing and analyzing data from various missions to the planetary bodies in the Solar System, assisting in finding potential landing sites for exploration vehicles, mapping our neighboring planets and their moons, and conducting research to better understand the origins, evolutions, and geologic processes operating on these bodies. The Early Days Gene Shoemaker founded the Astrogeology Research Program August 25, 1960. The research program started out as the ''Astrogeologic Studies Group'' at the Uni ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Uruk Sulcus
Uruk Sulcus is a bright region of grooved terrain adjacent to Galileo Regio on Jupiter's moon The Moon is Earth's only natural satellite. It is the fifth largest satellite in the Solar System and the largest and most massive relative to its parent planet, with a diameter about one-quarter that of Earth (comparable to the width ... Ganymede. It is thought to be younger than the darker material in Galileo Regio and similar regions elsewhere on the moon. References Surface features of Ganymede (moon) Ganymede (moon) {{crater-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Marius Regio
Marius may refer to: People *Gaius Marius (157 BC-86 BC), Roman statesman, seven times consul. Arts and entertainment * ''Marius'' (play), a 1929 play by Marcel Pagnol * "Marius" (short story), a 1957 story by Poul Anderson * ''Marius'' (1931 film), a French adaptation of Pagnol's play, directed by Alexander Korda * ''Marius'' (2013 film), a French adaptation of Pagnol's play, directed by Daniel Auteuil Places * Marius (Laconia), a town of ancient Laconia, Greece * Măriuș, a village in Valea Vinului, Satu Mare County, Romania * Marius (crater), on the Moon * Marius Hills, on the Moon Other uses * Marius (name), a male given name, a Roman clan name and family name, and a modern name or surname * Marius (commando), Alain Alivon (born 1965), French Navy officer * Marius (giraffe), a giraffe euthanized at the Copenhagen Zoo in 2014 See also * * * Mario (other) * Maria (other) * Mary (other) Mary may refer to: People * Mary (name), a feminin ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Palimpsest (planetary Astronomy)
A palimpsest , in planetary astronomy, is an ancient crater that has been degraded over time. They may also be referred to as "ghost craters", "degraded craters", "buried craters", or "pathological craters". Palimpsests have been identified on Mercury, the Earth, the Moon, Mars, Ganymede, Callisto, and possibly even Titan. On Mars, these features are morphologically described as craters that are "flat-floored, rimless, extremely shallow, without central peaks, and would probably represent what remains after erosion." On an icy moon of the outer Solar System, a palimpsest is a crater whose relief has disappeared due to creep of the icy surface ("viscous relaxation") or subsequent cryovolcanic outpourings, leaving a circular albedo feature, perhaps with a "ghost" of a rim. Icy surfaces of natural satellites like Callisto Callisto most commonly refers to: * Callisto (mythology), a nymph *Callisto (moon), a moon of Jupiter Callisto may also refer to: Art and entertainment *' ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Memphis Facula
Memphis Facula is a palimpsest, or "ghost crater", on Ganymede, the largest of the Jovian satellites. About 360 km across, it is situated in the southwestern part of Galileo Regio, a huge almost circular dark region in Ganymede's northern hemisphere. Although almost level today, it is a relic of a massive impact and once was a deep impact crater whose walls have slumped and its floor has risen isostatically, smoothing out the remaining topography with slush. The morphology of the larger palimpsests like Memphis Facula suggests that Ganymede's icy crust at the time of impact was about 10 km thick and was penetrated by the impact, allowing the slush and fluid beneath to fill and level out the crater. See also *Ganymede City ''3001: The Final Odyssey'' is a 1997 science fiction novel by British writer Arthur C. Clarke. It is the fourth and final book in Clarke's '' Space Odyssey'' series. Plot summary The novel begins with a brief prologue describing t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Impact Crater
An impact crater is a circular depression in the surface of a solid astronomical object formed by the hypervelocity impact of a smaller object. In contrast to volcanic craters, which result from explosion or internal collapse, impact craters typically have raised rims and floors that are lower in elevation than the surrounding terrain. Lunar impact craters range from microscopic craters on lunar rocks returned by the Apollo Program and small, simple, bowl-shaped depressions in the lunar regolith to large, complex, multi-ringed impact basins. Meteor Crater is a well-known example of a small impact crater on Earth. Impact craters are the dominant geographic features on many solid Solar System objects including the Moon, Mercury, Callisto, Ganymede and most small moons and asteroids. On other planets and moons that experience more active surface geological processes, such as Earth, Venus, Europa, Io and Titan, visible impact craters are less common because they become ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Surface Features Of Ganymede (moon)
A surface, as the term is most generally used, is the outermost or uppermost layer of a physical object or space. It is the portion or region of the object that can first be perceived by an observer using the senses of sight and touch, and is the portion with which other materials first interact. The surface of an object is more than "a mere geometric solid", but is "filled with, spread over by, or suffused with perceivable qualities such as color and warmth". The concept of surface has been abstracted and formalized in mathematics, specifically in geometry. Depending on the properties on which the emphasis is given, there are several non equivalent such formalizations, that are all called ''surface'', sometimes with some qualifier, such as algebraic surface, smooth surface or fractal surface. The concept of surface and its mathematical abstraction are both widely used in physics, engineering, computer graphics, and many other disciplines, primarily in representing the surfac ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
