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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] |
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] |
Lu Hsun
Lu Xun ( zh, c=魯迅, p=Lǔ Xùn, ; 25 September 188119 October 1936), pen name of Zhou Shuren, born Zhou Zhangshou, was a Chinese writer. A leading figure of modern Chinese literature, he wrote in both vernacular and literary Chinese as a novelist, literary critic, essayist, poet, translator and political commentator, known for his satirical, acerbic tone and critical reflections on Chinese history and culture. Lu was born into a declining family of landlords and scholar-officials in Shaoxing, Zhejiang. Although he initially aspired to take the imperial examinations, his family’s limited financial means compelled him to attend government-funded schools that offered a "Western-style education." After graduation, Lu pursued medical studies at Tohoku University in Japan but eventually dropped out, turning his attention to literature. Financial difficulties forced his return to China, where he taught at various secondary schools and colleges before taking a position at the Min ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Institute Of Physics Publishing
IOP Publishing (previously Institute of Physics Publishing) is the publishing company of the Institute of Physics. It provides publications through which scientific research is distributed worldwide, including journals, community websites, magazines, conference proceedings and books. The Institute of Physics is a scientific charity devoted to increasing the practice, understanding and application of physics. Any financial surplus earned by IOP Publishing goes to support physics through the activities of the Institute. The main IOP Publishing headquarters is located in Bristol, England, and the North American headquarters is in Philadelphia, United States. It also has regional offices in Mexico City, Beijing, Tokyo, and Sydney. It employs over 500 staff. It was the first physics publisher to publish a journal on the internet. In 1994, the journal ''Classical and Quantum Gravity'' was published as a TeX file. In January 1996 the organization launched the full electronic journals ... [...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] |
Lu Xun
Lu Xun ( zh, c=魯迅, p=Lǔ Xùn, ; 25 September 188119 October 1936), pen name of Zhou Shuren, born Zhou Zhangshou, was a Chinese writer. A leading figure of modern Chinese literature, he wrote in both vernacular and literary Chinese as a novelist, literary critic, essayist, poet, translator and political commentator, known for his satirical, acerbic tone and critical reflections on Chinese history and culture. Lu was born into a declining family of landlords and scholar-officials in Shaoxing, Zhejiang. Although he initially aspired to take the imperial examinations, his family’s limited financial means compelled him to attend government-funded schools that offered a "Western-style education." After graduation, Lu pursued medical studies at Tohoku University in Japan but eventually dropped out, turning his attention to literature. Financial difficulties forced his return to China, where he taught at various secondary schools and colleges before taking a position at the Min ... [...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] |
USGS
The United States Geological Survey (USGS), founded as the Geological Survey, is an government agency, agency of the United States Department of the Interior, U.S. Department of the Interior whose work spans the disciplines of biology, geography, geology, and hydrology. The agency was founded on March 3, 1879, to study the landscape of the United States, its natural resources, and the natural hazards that threaten it. The agency also makes maps of planets and moons, based on data from List of NASA missions, U.S. space probes. The sole scientific agency of the U.S. Department of the Interior, USGS is a fact-finding research organization with no regulatory responsibility. It is headquartered in Reston, Virginia, with major offices near Lakewood, Colorado; at the Denver Federal Center; and in NASA Research Park in California. In 2009, it employed about 8,670 people. The current motto of the USGS, in use since August 1997, is "science for a changing world". The agency's previous s ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hollows (Mercury)
Hollows are a landform on the planet Mercury, discovered during the ''MESSENGER'' mission that orbited the planet from 2011 to 2015. Hollows are typically clusters of rimless depressions with flat floors and haloes of bright (high albedo) material surrounding them. Hollows are thought to form by loss of volatiles from the surface by sublimation, caused by the intense solar radiation on the airless planet. They are some of the youngest features on Mercury. Hollows were first observed as bright areas within craters imaged by the Mariner 10 spacecraft in 1974, but the images were not of sufficient resolution to discern any detail. These craters include Balzac, Tyagaraja, Theophanes, Zeami, and Hopper.Dzurisin, D., 1977. Mercurian bright patches: Evidence for physio-chemical alteration of surface material? ''Geophysical Research Letters'', 4, 383-386, doi:10.1029/GL004i010p00383 The MESSENGER spacecraft imaged the rest of the planet, much of it at higher resolution and in co ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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] |
