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Erebor Mons
Erebor Mons is a mountain on Titan, the largest moon of the planet Saturn. It is located near Titan's equator, between 4–5° south and 35–36° west, centered on , in the western part of Quivira region. It is 40 km across, more than 1 km high, and has lobate flow features to its north and east. It is probably a cryovolcano. Erebor Mons is situated about 470 km to the north-northeast of a larger cryovolcanic construct, Doom Mons. Erebor Mons is one of the highest known mountains of Titan, but it is not readily discernible on radar or infrared images. It was discovered only when stereoscopic radar data allowed the construction of an elevation map. It was imaged by Cassini radar 22 February and 10 April 2007. Erebor Mons is named after Erebor, the "Lonely Mountain" that appears in J. R. R. Tolkien's fictional world of Middle-earth, most prominently in ''The Hobbit''. The name follows a convention that Titanean Mountains are named after mountains in Tolkien's ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Doom Mons
Doom Mons is the name of a mountain range and its eponymous peak on Titan, the largest moon of Saturn. A putative cryovolcano, it is the largest mountain range on Titan by volume, and at one of the highest in the Solar System. It was discovered by the ''Cassini–Huygens'' probe in 2005 and officially named in 2012. Location on Titan Doom Mons is located in the Southern Hemisphere of Titan, between 14–15° south and 40–41° west. It is located within the Aztlan darklands region, possibly connected to the wider Shangri-La dark region, and is adjacent to Sotra Patera, a possible cryovolcanic caldera deep. Mohini Fluctus, a bright lobate flow feature at least 200 km long, appears to emerge from Doom Mons and extends to the northeast. It is partially covered by dunes, including at its visible terminus, suggesting it is on the order of tens of meters thick. About to the north-northeast is situated another putative cryovolcanic feature, Erebor Mons, which is across, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Extraterrestrial Mountains
Extraterrestrial refers to any object or being beyond ( extra-) the planet Earth (terrestrial). It is derived from the Latin words ''extra'' ("outside", "outwards") and ''terrestris'' ("earthly", "of or relating to the Earth"). It may be abbreviated as "E.T." Extraterrestrial may also refer to: General topics * Extraterrestrial life, life that occurs outside of Earth and that probably did not originate from Earth ** Extraterrestrial intelligence, hypothetical intelligent extraterrestrial life ** Extraterrestrials in fiction ** List of alleged extraterrestrial beings Media and entertainment * ''Extraterrestrial'' (TV documentary), a program on the National Geographic Channel * "Extraterrestrial" (song), a 2018 song by Tynan and Kompany * "E.T." (song), a 2010 song by Katy Perry * ' Film * ''Extraterrestrial'' (2011 film), a 2011 Spanish film by Nacho Vigalondo * ''Extraterrestrial'' (2014 film), a 2014 American film by Colin Minihan and written by The Vicious Brothers * ''E ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
List Of Geological Features On Titan
This is a list of named geological features on Saturn's moon Titan. Official names for these features have only been announced very recently, as Titan's surface was virtually unknown before the arrival of the ''Cassini–Huygens'' probe. Some features were known by informal nicknames beforehand; these names are noted where appropriate. Note that some features with a physical size given by "diameter" may not be circular; then the number refers to the length. Albedo features Albedo features on Titan are named after sacred or enchanted places in world mythologies and literature. Bright albedo features Dark albedo features Arcūs Titanean arcūs (arc-shaped features) are named after deities of happiness. Colles Colles are small hills or knobs which are named after characters in J. R. R. Tolkien's Middle-earth. Craters Craters on Titan are named after deities of wisdom. Faculae Faculae (bright spots) are named after islands on Earth that are not politically indepen ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
The Hobbit
''The Hobbit, or There and Back Again'' is a children's fantasy novel by English author J. R. R. Tolkien. It was published in 1937 to wide critical acclaim, being nominated for the Carnegie Medal and awarded a prize from the ''New York Herald Tribune'' for best juvenile fiction. The book remains popular and is recognized as a classic in children's literature. ''The Hobbit'' is set within Tolkien's fictional universe and follows the quest of home-loving Bilbo Baggins, the titular hobbit, to win a share of the treasure guarded by a dragon named Smaug. Bilbo's journey takes him from his light-hearted, rural surroundings into more sinister territory. The story is told in the form of an episodic quest, and most chapters introduce a specific creature or type of creature of Tolkien's geography. Bilbo gains a new level of maturity, competence, and wisdom by accepting the disreputable, romantic, fey, and adventurous sides of his nature and applying his wits and common ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Middle-earth
Middle-earth is the fictional setting of much of the English writer J. R. R. Tolkien's fantasy. The term is equivalent to the '' Miðgarðr'' of Norse mythology and ''Middangeard'' in Old English works, including ''Beowulf''. Middle-earth is the human-inhabited world, that is, the central continent of the Earth, in Tolkien's imagined mythological past. Tolkien's most widely read works, ''The Hobbit'' and ''The Lord of the Rings'', are set entirely in Middle-earth. "Middle-earth" has also become a short-hand term for Tolkien's legendarium, his large body of fantasy writings, and for the entirety of his fictional world. Middle-earth is the main continent of Earth (Arda) in an imaginary period of the Earth's past, ending with Tolkien's Third Age, about 6,000 years ago. Tolkien's tales of Middle-earth mostly focus on the north-west of the continent. This part of Middle-earth is suggestive of Europe, the north-west of the Old World, with the environs of the Shire reminisce ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Erebor
In J. R. R. Tolkien's legendarium, the Lonely Mountain is a mountain northeast of Mirkwood. It is the location of the Dwarves' Kingdom under the Mountain and the town of Dale lies in a vale on its southern slopes. In ''The Lord of the Rings'', the mountain is called by the Sindarin name Erebor., book 5, ch. 9 "The Last Debate" The Lonely Mountain is the destination of the protagonists in ''The Hobbit'' and is the scene of the novel's climax. The mountain is a symbol of adventure in ''The Hobbit'', and of the titular Hobbit Bilbo Baggins's maturation as an individual. Fictional mountain Erebor stood hundreds of miles from the nearest mountain range. Tolkien's rendering of Thrór's map in ''The Hobbit'' shows it with six ridges stretching out from a central peak that was snowcapped well into spring. The whole mountain was perhaps ten miles in diameter; it contained an immense wealth of gold and jewels., ch. 1 "An Unexpected Party" Origins of the Kingdom under the Mountain ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cassini–Huygens
''Cassini–Huygens'' ( ), commonly called ''Cassini'', was a space-research mission by NASA, the European Space Agency (ESA), and the Italian Space Agency (ASI) to send a space probe to study the planet Saturn and its system, including its rings and natural satellites. The Flagship-class robotic spacecraft comprised both NASA's ''Cassini'' space probe and ESA's ''Huygens'' lander, which landed on Saturn's largest moon, Titan. ''Cassini'' was the fourth space probe to visit Saturn and the first to enter its orbit, where it stayed from 2004 to 2017. The two craft took their names from the astronomers Giovanni Cassini and Christiaan Huygens. Launched aboard a Titan IVB/Centaur on October 15, 1997, ''Cassini'' was active in space for nearly 20 years, with 13 years spent orbiting Saturn and studying the planet and its system after entering orbit on July 1, 2004. The voyage to Saturn included flybys of Venus (April 1998 and July 1999), Earth (August 1999), the asteroid 2685 Ma ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cryovolcano
A cryovolcano (sometimes informally called an ice volcano) is a type of volcano that erupts volatiles such as water, ammonia or methane into an extremely cold environment that is at or below their freezing point. The process of formation is known as cryovolcanism. Collectively referred to as cryomagma, cryolava or ice-volcanic melt, these substances are usually liquids and can form plumes, but can also be in vapour form. After the eruption, cryomagma is expected to condense to a solid form when exposed to the very low surrounding temperature. Cryovolcanoes may potentially form on icy moons and other objects with abundant water past the Solar System's snow line (such as Pluto). A number of features have been identified as possible cryovolcanoes on Pluto, Titan and Ceres, and a subset of domes on Europa may have cryovolcanic origins. In addition, although they are not known to form volcanoes, ice geysers have been observed on Enceladus and potentially Triton. One potential e ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Quivira (Titan)
Quivira was a province of the ancestral Wichita people, located near the Great Bend of the Arkansas River in central Kansas, The exact site may be near present-day Lyons extending northeast to Salina. The Wichita city of Etzanoa, which flourished between 1450 and 1700, is likely part of Quivira. Spanish conquistador Francisco Vásquez de Coronado visited in 1541. Description Archaeological evidence suggests that Quivira was located near the Great Bend of the Arkansas River in central Kansas. The remains of several Indigenous communities have been found near Lyons along Cow Creek and the Little Arkansas River along with articles of Spanish manufacture dating from Coronado's time. The Quivirans were almost certainly the Wichita. Coronado's meager descriptions of Quivira resemble more recent post-contact Wichita communities. The Quivirans seem to have been numerous, based on the number of settlements Coronado visited, with a population of at least 10,000 persons. They wer ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Equator
The equator is a circle of latitude, about in circumference, that divides Earth into the Northern and Southern hemispheres. It is an imaginary line located at 0 degrees latitude, halfway between the North and South poles. The term can also be used for any other celestial body that is roughly spherical. In spatial (3D) geometry, as applied in astronomy, the equator of a rotating spheroid (such as a planet) is the parallel (circle of latitude) at which latitude is defined to be 0°. It is an imaginary line on the spheroid, equidistant from its poles, dividing it into northern and southern hemispheres. In other words, it is the intersection of the spheroid with the plane perpendicular to its axis of rotation and midway between its geographical poles. On and near the equator (on Earth), noontime sunlight appears almost directly overhead (no more than about 23° from the zenith) every day, year-round. Consequently, the equator has a rather stable daytime temperature ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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