|
L'Engle (crater)
L'Engle is a crater on Mercury, located near the south pole. Its name was adopted by the International Astronomical Union (IAU) in 2013, after American author Madeleine L'Engle. L'Engle has a crater floor that is in permanent shadow. NASA/Johns Hopkins University Applied Physics Laboratory/Carnegie Institution of Washington So do nearby craters Chao Meng-Fu (at the south pole), Lovecraft, and Hurley
[...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
MESSENGER
''MESSENGER'' was a NASA robotic space probe that orbited the planet Mercury between 2011 and 2015, studying Mercury's chemical composition, geology, and magnetic field. The name is a backronym for "Mercury Surface, Space Environment, Geochemistry, and Ranging", and a reference to the messenger god Mercury from Roman mythology. ''MESSENGER'' was launched aboard a Delta II rocket in August 2004. Its path involved a complex series of flybys – the spacecraft flew by Earth once, Venus twice, and Mercury itself three times, allowing it to decelerate relative to Mercury using minimal fuel. During its first flyby of Mercury in January 2008, ''MESSENGER'' became the second mission, after Mariner 10 in 1975, to reach Mercury. ''MESSENGER'' entered orbit around Mercury on March 18, 2011, becoming the first spacecraft to do so. It successfully completed its primary mission in 2012. Following two mission extensions, the spacecraft used the last of its maneuvering propellant to deo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Madeleine L'Engle
Madeleine L'Engle DStJ (; November 29, 1918 – September 6, 2007) was an American writer of fiction, non-fiction, poetry, and young adult fiction, including ''A Wrinkle in Time'' and its sequels: ''A Wind in the Door'', ''A Swiftly Tilting Planet'', ''Many Waters'', and ''An Acceptable Time''. Her works reflect both her Christian faith and her strong interest in modern science. Early life Madeleine L'Engle Camp was born in New York City on November 29, 1918, and named after her great-grandmother, Madeleine Margaret L'Engle, otherwise known as Mado. Her maternal grandfather was Florida banker Bion Barnett, co-founder of Barnett Bank in Jacksonville, Florida. Her mother, a pianist, was also named Madeleine: Madeleine Hall Barnett. Her father, Charles Wadsworth Camp, was a writer, critic, and foreign correspondent who, according to his daughter, suffered lung damage from mustard gas during World War I. L'Engle wrote her first story at age of five and began keeping a journal at age ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mercury (planet)
Mercury is the smallest planet in the Solar System and the closest to the Sun. Its orbit around the Sun takes 87.97 Earth days, the shortest of all the Sun's planets. It is named after the Roman god ' ( Mercury), god of commerce, messenger of the gods, and mediator between gods and mortals, corresponding to the Greek god Hermes (). Like Venus, Mercury orbits the Sun within Earth's orbit as an inferior planet, and its apparent distance from the Sun as viewed from Earth never exceeds 28°. This proximity to the Sun means the planet can only be seen near the western horizon after sunset or the eastern horizon before sunrise, usually in twilight. At this time, it may appear as a bright star-like object, but is more difficult to observe than Venus. From Earth, the planet telescopically displays the complete range of phases, similar to Venus and the Moon, which recurs over its synodic period of approximately 116 days. The synodic proximity of Mercury to Earth makes Mercury most ... [...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] |
Chao Meng-Fu (crater)
Chao Meng-Fu is a diameter crater on Mercury named after the Chinese painter and calligrapher Zhao Mengfu (1254–1322). Due to its location near Mercury's south pole (132.4° west, 87.3° south) and the planet's small axial tilt, an estimated 40% of the crater lies in permanent shadow. This combined with bright radar echoes from the location of the crater leads scientists to suspect that it may shelter large quantities of ice protected against sublimation into the near-vacuum by the constant temperatures. Radar evidence for ice Radar studies involving Arecibo (Puerto Rico), Goldstone (California, United States), and the Very Large Array (New Mexico, United States) detected a number of highly-radar-reflective depolarized areas on Mercury, including several locations at the planet's poles. Many of these reflective features appear to coincide with craters imaged by ''Mariner 10'', with the largest feature at the south pole corresponding to Chao Meng-Fu crater. The luminos ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lovecraft (crater)
Lovecraft is a crater on Mercury, located near the south pole. Its name was adopted by the International Astronomical Union (IAU) in 2013, after American author Howard Phillips Lovecraft. Lovecraft lies on the northeast rim of Roerich crater. Lovecraft has a crater floor that is in permanent shadow. NASA/Johns Hopkins University Applied Physics Laboratory/Carnegie Institution of Washington So do nearby craters Chao Meng-Fu (at the south pole), , and [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hurley (crater)
Hurley is a crater on Mercury, located near the south pole. Its name was adopted by the 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, outreac ... (IAU) in 2013, after Australian photographer Frank Hurley. Hurley has a crater floor that is in permanent shadow. NASA/Johns Hopkins University Applied Physics Laboratory/Carnegie Institution of Washington So do nearby craters Chao Meng-Fu (at the south pole), [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
.svg "Click for more on -> Mercury (planet)")
