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Sedna Planitia
Sedna Planitia is a large lowland area of Venus, south of Ishtar Terra. It is thought to be lava-covered and similar to a lunar mare The lunar maria (; singular: mare ) are large, dark, basaltic plains on Earth's Moon, formed by ancient asteroid impacts on the far side on the Moon that triggered volcanic activity on the opposite (near) side. They were dubbed , Latin for 'seas' .... Its name is derived from the Inuit sea goddess. References Surface features of Venus Volcanism on Venus {{Venus-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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MGN can refer to: *Marine Guidance Notes, by UK Maritime and Coastguard Agency *National Rail station code for Marston Green railway station, UK *Mirror Group Newspapers, UK, now part of Trinity Mirror *Medial geniculate nucleus, a subnucleus of the thalamus in the brain *Membranous glomerulonephritis, a kidney disease *Former UK Midland and Great Northern Joint Railway The Midland and Great Northern Joint Railway (M&GNJR) was a railway network in England, in the area connecting southern Lincolnshire, the Isle of Ely and north Norfolk. It developed from several local independent concerns and was incorporated ... *'' Mouettes Genevoises Navigation'', public transportation by boat in Geneva, Switzerland {{disambig ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sedna (mythology)
Sedna ( iu, ᓴᓐᓇ ''Sanna'', previously ''Sedna'' or ''Sidne'') is the goddess of the sea and marine animals in Inuit mythology, also known as the Mother of the Sea or Mistress of the Sea. The story of Sedna, which is a creation myth, describes how she came to rule over Adlivun, the Inuit underworld. Other names Sedna is known as Arnakuagsak or Arnaqquassaaq in parts of Greenland. She's called Sassuma Arnaa ("Mother of the Deep") in West Greenlandic and Nerrivik ("Table", Inuktun) or Nuliajuk ( District of Keewatin, Northwest Territories, Canada). She is sometimes known by other names by different Inuit groups such as Arnapkapfaaluk ("Big Bad Woman") of the Copper Inuit from the Coronation Gulf area and Takánakapsâluk or Takannaaluk ( Igloolik). In Killiniq, Labrador, she was referred to as "Old-woman-who-lived-in-the-sea". Myth More than one version of the Sedna legend exists. Some legends have her as the daughter of a goddess named Isarrataitsoq, while others only ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Venus
Venus is the second planet from the Sun. It is sometimes called Earth's "sister" or "twin" planet as it is almost as large and has a similar composition. As an interior planet to Earth, Venus (like Mercury) appears in Earth's sky never far from the Sun, either as morning star or evening star. Aside from the Sun and Moon, Venus is the brightest natural object in Earth's sky, capable of casting visible shadows on Earth at dark conditions and being visible to the naked eye in broad daylight. Venus is the second largest terrestrial object of the Solar System. It has a surface gravity slightly lower than on Earth and has a very weak induced magnetosphere. The atmosphere of Venus, mainly consists of carbon dioxide, and is the densest and hottest of the four terrestrial planets at the surface. With an atmospheric pressure at the planet's surface of about 92 times the sea level pressure of Earth and a mean temperature of , the carbon dioxide gas at Venus's surface is in the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ishtar Terra
Ishtar Terra is one of the three continental regions on the planet Venus, the others being Aphrodite Terra and Lada Terra. It is a highland region named after the Akkadian goddess Ishtar, and is found in the north of the planet. In size, it is roughly between Australia and the contiguous United States, making it the second-largest of the terrae. On its eastern edge lies the great mountain chain Maxwell Montes, which is about high, compared to Mount Everest at . On one side of the mountain chain is the impact crater Cleopatra Patera, in diameter filled with lava. Ishtar Terra contains the four main mountain ranges of Venus: Maxwell Montes on the eastern edge, Freyja Montes in the north, Akna Montes on the western edge, and Danu Montes in the southern region. These surround the lower plain of Ishtar Terra, which is named Lakshmi Planum (after the Hindu goddess Lakshmi). Ishtar Terra also contains volcanoes named after famous women: Sacajawea and Colette. Ishtar Terra is a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lunar Mare
The lunar maria (; singular: mare ) are large, dark, basaltic plains on Earth's Moon, formed by ancient asteroid impacts on the far side on the Moon that triggered volcanic activity on the opposite (near) side. They were dubbed , Latin for 'seas', by early astronomers who mistook them for actual seas. They are less reflective than the "highlands" as a result of their iron-rich composition, and hence appear dark to the naked eye. The maria cover about 16% of the lunar surface, mostly on the side visible from Earth. The few maria on the far side are much smaller, residing mostly in very large craters. The traditional nomenclature for the Moon also includes one (ocean), as well as features with the names ('lake'), ('marsh'), and ('bay'). The last three are smaller than maria, but have the same nature and characteristics. The names of maria refer to sea features (Mare Humorum, Mare Imbrium, Mare Insularum, Mare Nubium, Mare Spumans, Mare Undarum, Mare Vaporum, Oceanus Procellarum ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Surface Features Of Venus
The surface of Venus is dominated by geologic features that include volcanoes, large impact craters, and aeolian erosion and sedimentation landforms. Venus has a topography reflecting its single, strong crustal plate, with a unimodal elevation distribution (over 90% of the surface lies within an elevation of -1.0 and 2.5 km) that preserves geologic structures for long periods of time. Studies of the Venusian surface are based on imaging, radar, and altimetry data collected from several exploratory space probes, particularly ''Magellan'', since 1961 (see Venus Exploration). Despite its similarities to Earth in size, mass, density, and possibly composition, Venus has a unique geology that is unlike Earth's. Although much older than Earth's, the surface of Venus is relatively young compared to other terrestrial planets (<500 million years old), possibly due to a global-scale resurfacing event that buried much of the previous rock record. [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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