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Mari (crater)
Mari is an impact crater within Argyre Planitia on Mars. The crater was named after the ancient town of Mari, Syria, by the IAU in 1991. Southern Mari crater is highly irregular and mountainous, atypical of a crater its size. Mari is located west of Milford Milford may refer to: Place names Canada * Milford (Annapolis), Nova Scotia * Milford (Halifax), Nova Scotia * Milford, Ontario England * Milford, Derbyshire * Milford, Devon, a place in Devon * Milford on Sea, Hampshire * Milford, Shro ... crater. References Impact craters on Mars {{Mars-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Viking Program
The ''Viking'' program consisted of a pair of identical American space probes, ''Viking 1'' and ''Viking 2'', which landed on Mars in 1976. Each spacecraft was composed of two main parts: an orbiter designed to photograph the surface of Mars from orbit, and a lander designed to study the planet from the surface. The orbiters also served as communication relays for the landers once they touched down. The Viking program grew from NASA's earlier, even more ambitious, Voyager Mars program, which was not related to the successful Voyager deep space probes of the late 1970s. ''Viking 1'' was launched on August 20, 1975, and the second craft, ''Viking 2'', was launched on September 9, 1975, both riding atop Titan IIIE rockets with Centaur upper stages. ''Viking 1'' entered Mars orbit on June 19, 1976, with ''Viking 2'' following on August 7. After orbiting Mars for more than a month and returning images used for landing site selection, the orbiters and landers detached; the lander ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Argyre Quadrangle
The Argyre quadrangle is one of a series of 30 quadrangle maps of Mars used by the United States Geological Survey (USGS) Astrogeology Research Program. The Argyre quadrangle is also referred to as MC-26 (Mars Chart-26). It contains Argyre Planitia and part of Noachis Terra. Name The word Argyre is named after a legendary silver at the mouth of the Ganges-- Galle_crater,_which_resembles_a_ rakan,_Berma. The_Argyre_quadrangle_covers_the_area_from_0°_to_60°_west_longitude_and_from_30°_to_65°_south_latitude_on_Mars.__It_contains_Galle_(Martian_crater)">Galle_crater,_which_resembles_a_smiley">smiley_face_and_the_ rakan,_Berma. The_Argyre_quadrangle_covers_the_area_from_0°_to_60°_west_longitude_and_from_30°_to_65°_south_latitude_on_Mars.__It_contains_Galle_(Martian_crater)">Galle_crater,_which_resembles_a_smiley">smiley_face_and_the_Argyre_Planitia">Argyre_basin,_a_giant_impact_crater.__Research_published_in_the_journal_''Icarus_(journal).html" ;"title="Argyre_Plani ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mars
Mars is the fourth planet from the Sun and the second-smallest planet in the Solar System, only being larger than Mercury (planet), Mercury. In the English language, Mars is named for the Mars (mythology), Roman god of war. Mars is a terrestrial planet with a thin atmosphere (less than 1% that of Earth's), and has a crust primarily composed of elements similar to Earth's crust, as well as a core made of iron and nickel. Mars has surface features such as impact craters, valleys, dunes and polar ice caps. It has two small and irregularly shaped moons, Phobos (moon), Phobos and Deimos (moon), Deimos. Some of the most notable surface features on Mars include Olympus Mons, the largest volcano and List of tallest mountains in the Solar System, highest known mountain in the Solar System and Valles Marineris, one of the largest canyons in the Solar System. The North Polar Basin (Mars), Borealis basin in the Northern Hemisphere covers approximately 40% of the planet and may be a la ... [...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 eroded ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Argyre Planitia
Argyre Planitia is a plain located within the impact basin Argyre in the southern highlands of Mars. Its name comes from a map produced by Giovanni Schiaparelli in 1877; it refers to Argyre, a mythical island of silver in Greek mythology. Argyre is centered at and lies between 35° and 61° S and 27° and 62° W in the Argyre quadrangle. The basin is approximately wide and drops below the surrounding plains; it is the second deepest impact basin on Mars after Hellas. The crater Galle, located on the east rim of Argyre at , strongly resembles a smiley face. The basin was formed by a giant impact during the Late Heavy Bombardment of the early Solar System, approximately 3.9 billion years ago, and may be one of the best preserved ancient impact basins from that period. Argyre is surrounded by rugged massifs which form concentric and radial patterns around the basin. Several mountain ranges are present, some of these mountain ranges include Charitum and Nereidum Montes. [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mari, Syria
Mari (Cuneiform: , ''ma-riki'', modern Tell Hariri; ar, تل حريري) was an ancient Semitic city-state in modern-day Syria. Its remains form a tell 11 kilometers north-west of Abu Kamal on the Euphrates River western bank, some 120 kilometers southeast of Deir ez-Zor. It flourished as a trade center and hegemonic state between 2900 BC and 1759 BC. The city was purposely built in the middle of the Euphrates trade routes between Sumer in the south and the Eblaite kingdom and the Levant in the west. Mari was first abandoned in the middle of the 26th century BC but was rebuilt and became the capital of a hegemonic East Semitic state before 2500 BC. This second Mari engaged in a long war with its rival Ebla and is known for its strong affinity with Sumerian culture. It was destroyed in the 23rd century BC by the Akkadians, who allowed the city to be rebuilt and appointed a military governor (''Shakkanakku''). The governors became independent with the disint ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Syria
Syria ( ar, سُورِيَا or سُورِيَة, translit=Sūriyā), officially the Syrian Arab Republic ( ar, الجمهورية العربية السورية, al-Jumhūrīyah al-ʻArabīyah as-Sūrīyah), is a Western Asian country located in the Eastern Mediterranean and the Levant. It is a unitary republic that consists of 14 governorates (subdivisions), and is bordered by the Mediterranean Sea to the west, Turkey to the north, Iraq to the east and southeast, Jordan to the south, and Israel and Lebanon to the southwest. Cyprus lies to the west across the Mediterranean Sea. A country of fertile plains, high mountains, and deserts, Syria is home to diverse ethnic and religious groups, including the majority Syrian Arabs, Kurds, Turkmens, Assyrians, Armenians, Circassians, Albanians, and Greeks. Religious groups include Muslims, Christians, Alawites, Druze, and Yazidis. The capital and largest city of Syria is Damascus. Arabs are the largest ethnic group, and Mu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
International Astronomical Union
The International Astronomical Union (IAU; french: link=yes, Union astronomique internationale, UAI) is a nongovernmental organisation with the objective of advancing astronomy in all aspects, including promoting astronomical research, outreach, education, and development through global cooperation. It was founded in 1919 and is based in Paris, France. The IAU is composed of individual members, who include both professional astronomers and junior scientists, and national members, such as professional associations, national societies, or academic institutions. Individual members are organised into divisions, committees, and working groups centered on particular subdisciplines, subjects, or initiatives. As of 2018, the Union had over 13,700 individual members, spanning 90 countries, and 82 national members. Among the key activities of the IAU is serving as a forum for scientific conferences. It sponsors nine annual symposia and holds a triannual General Assembly that sets policy ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
NASA
The National Aeronautics and Space Administration (NASA ) is an independent agency of the US federal government responsible for the civil space program, aeronautics research, and space research. NASA was established in 1958, succeeding the National Advisory Committee for Aeronautics (NACA), to give the U.S. space development effort a distinctly civilian orientation, emphasizing peaceful applications in space science. NASA has since led most American space exploration, including Project Mercury, Project Gemini, the 1968-1972 Apollo Moon landing missions, the Skylab space station, and the Space Shuttle. NASA supports the International Space Station and oversees the development of the Orion spacecraft and the Space Launch System for the crewed lunar Artemis program, Commercial Crew spacecraft, and the planned Lunar Gateway space station. The agency is also responsible for the Launch Services Program, which provides oversight of launch operations and countdown management f ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Milford (crater)
Milford may refer to: Place names Canada * Milford (Annapolis), Nova Scotia * Milford (Halifax), Nova Scotia * Milford, Ontario England * Milford, Derbyshire * Milford, Devon, a List of United Kingdom locations: Milb-Milk, place in Devon * Milford on Sea, Hampshire * Milford, Shropshire, a List of United Kingdom locations: Milb-Milk, place in Shropshire * Milford, Staffordshire * Milford, Surrey ** served by Milford railway station * Milford, Wiltshire Ireland * Milford, County Cork * Milford, County Donegal New Zealand * Milford Sound * Milford Track * Milford, New Zealand, a suburb of Auckland Northern Ireland * Milford, County Armagh Wales * Milford, Powys, a List of United Kingdom locations: Milb-Milk#Milb-Milk, location * Milford Haven, Pembrokeshire United States * Milford, California * Milford, Connecticut ** Milford station (Connecticut), commuter rail station * Milford, Delaware * Milford Hundred, an unincorporated subdivision of Kent County, Delaware ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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