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Al-Jāhiz (crater)
Al-Jāhiz is a crater on Mercury. It has a diameter of 83 kilometers. Its name was proposed by astrophysicist David Morrison and adopted by the International Astronomical Union (IAU) in 1976. Al-Jāhiz is named for the Arab writer Al-Jahiz Abu Uthman Amr ibn Bahr al-Kinani al-Basri (; ), commonly known as al-Jahiz (), was an Arab polymath and author of works of literature (including theory and criticism), theology, zoology, philosophy, grammar, dialectics, rhetoric, philology, lin ..., who died in Basra, Iraq, in 869 C.E. Lu Hsun crater is southwest of Al-Jāhiz. References Impact craters on Mercury {{Mercury-crater-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
MESSENGER
Messenger, Messengers, The Messenger or The Messengers may refer to: People * Courier, a person or company that delivers messages, packages, or mail * Messenger (surname) * Bicycle messenger, a bicyclist who transports packages through cities * Messenger-at-arms, an officer of the Scottish Court of Session * Messenger of the Court, a court officer responsible for carrying communications and executing other orders * Prophets and messengers in Islam * Muhammad and other prophets in Islam, who were known as Messengers of Allah (God) Science and technology Biology and chemistry * Chemical messenger, such as a hormone or neurotransmitter, a molecule used for cellular signalling * Messenger RNA (mRNA), RNA that carries information from DNA to the ribosome sites of protein synthesis in a cell Electronics and computing *Instant messenger, a tool for online text communication **Facebook Messenger, an instant messaging service by Meta (Facebook) **Microsoft Messenger service, an instant me ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Kuiper Quadrangle
The Kuiper quadrangle, located in a heavily cratered region of Mercury (planet), Mercury, includes the young, 55-km-diameter crater Kuiper (crater on Mercury), Kuiper (11° S., 31.5° ), which has the highest albedo recorded on the planet,Hapke, Bruce, Danielson, G. E., Jr., Klaasen, Kenneth, and Wilson, Lionel, 1975, Photometric observations of Mercury from Mariner 10: ''Journal of Geophysical Research'', v. 80, no. 17, pp. 2431–2443. and the small crater Hun Kal (crater), Hun Kal (0.6° S., 20.0° ), which is the principal reference point for Mercurian longitude (Davies and Batson, 1975). Impact craters and basins, their numerous secondary craters, and heavily to lightly cratered plains are the characteristic landforms of the region. At least six multiringed basins ranging from 150 km to 440 km in diameter are present. Inasmuch as multiringed basins occur widely on that part of Mercury photographed by ''Mariner 10'', as well as on the Moon and Mars, they ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mercury (planet)
Mercury is the first planet from the Sun. It is a rocky planet with a trace atmosphere. While it is the List of Solar System objects by size, smallest and least massive planet of the Solar System, its surface gravity is slightly higher than that of Mars. The surface of Mercury is similar to Earth's Moon, heavily Impact crater, cratered, with expansive rupes system, generated from thrust faults, and bright ray systems, formed by ejecta. Its largest crater, Caloris Planitia, has a diameter of , which is about one-third the diameter of the planet (). Being the most inferior planet, inferior orbiting planet it appears in Earth's sky, always close to the Sun, either as a "morning star" or an "evening star". It stays most of the time the closest to all other planets and is the planet with the highest delta-v needed to travel to from all other planets of the Solar System. Mercury's sidereal year (88.0 Earth days) and sidereal day (58.65 Earth days) are in a 3:2 ratio. This relation ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Al-Jahiz
Abu Uthman Amr ibn Bahr al-Kinani al-Basri (; ), commonly known as al-Jahiz (), was an Arab polymath and author of works of literature (including theory and criticism), theology, zoology, philosophy, grammar, dialectics, rhetoric, philology, linguistics, and politico-religious polemics. His extensive zoological work has been credited with describing principles related to natural selection, ethology, and the functions of an ecosystem. Ibn al-Nadim lists nearly 140 titles attributed to al-Jahiz, of which 75 are extant. The best known are ''Kitāb al-Ḥayawān'' (The Book of Animals), a seven-part compendium on an array of subjects with animals as their point of departure; ''Kitāb al-Bayān wa-l-tabyīn'' (The Book of Eloquence and Exposition), a wide-ranging work on human communication; and ''Kitāb al-Bukhalāʾ'' (The Book of Misers), a collection of anecdotes on stinginess. Tradition claims that he was smothered to death when a vast amount of books fell over him. Life The a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
David Morrison (astrophysicist)
David Morrison (born June 26, 1940) is an American astronomer, a senior scientist at the Solar System Exploration Research Virtual Institute, at NASA Ames Research Center in Mountain View, California. Morrison is the former director of the Carl Sagan Center for Study of Life in the Universe at the SETI Institute and of the NASA Lunar Science Institute. He is the past Director of Space at NASA Ames. Morrison is credited as a founder of the multi-disciplinary field of astrobiology. Morrison is best known for his work in risk assessment of near Earth objects such as asteroids and comets. Asteroid 2410 Morrison was named in his honor. Morrison is also known for his "Ask an Astrobiologist" series on NASA's website where he provides answers to questions submitted by the public. He has published 12 books and over 150 papers primarily on planetary science, astrobiology and near Earth objects. Biography David Morrison was born in Danville, Illinois on June 26, 1940. He attended elem ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
International Astronomical Union
The International Astronomical Union (IAU; , UAI) is an international non-governmental organization (INGO) with the objective of advancing astronomy in all aspects, including promoting astronomical research, outreach, education, and development through global cooperation. It was founded on 28 July 1919 in Brussels, Belgium 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. the Union had 85 national members and 12,734 individual members, spanning 90 countries and territories. 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 agencies of the United States government, independent agency of the federal government of the United States, US federal government responsible for the United States's civil list of government space agencies, space program, aeronautics research and outer space, space research. National Aeronautics and Space Act, Established in 1958, it succeeded the National Advisory Committee for Aeronautics (NACA) to give the American space development effort a distinct civilian orientation, emphasizing peaceful applications in space science. It has since led most of America's space exploration programs, including Project Mercury, Project Gemini, the 1968–1972 Apollo program missions, the Skylab space station, and the Space Shuttle. Currently, NASA supports the International Space Station (ISS) along with the Commercial Crew Program and oversees the development of the Orion (spacecraft), Orion spacecraft and the Sp ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lu Hsun (crater)
Lu Hsun is a crater on Mercury. It has a diameter of 98 kilometers. Its name was adopted by the International Astronomical Union The International Astronomical Union (IAU; , UAI) is an international non-governmental organization (INGO) with the objective of advancing astronomy in all aspects, including promoting astronomical research, outreach, education, and developmen ... (IAU) in 1976. Lu Hsun is named for the Chinese writer Lu Hsun, who lived from 1881 to 1936. Hollows are present on and around the central peak complex. Al-Jāhiz crater is northeast of Lu Hsun. File:Lu Hsun crater EN1063883199M.jpg, Oblique view of Lu Hsun crater (lower right), with bright hollows at the central peak File:Lu Hsun crater EN1007389680M.jpg, MESSENGER NAC image of central Lu Hsun References Impact craters on Mercury {{Mercury-planet-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
