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MESSENGER to Enter Mercury's Orbit to Find Clues to the Mysteries of the Planet
Mercury mission coincides with journey of New Horizons as it crosses the orbit of Uranus by Catherine McNiff Related Links Space Shuttle TimelineSpace Shuttle (Encyclopedia) Space…transit
(Encyclopedia) transit, in astronomy, passage of a body across a meridian or passage of a small body across the visible disk of a larger one. (The passage of a large body across a smaller one is…Crutzen, Paul Jozef
(Encyclopedia) Crutzen, Paul Jozef, 1933–2021, Dutch atmospheric chemist, grad. Univ. of Stockholm (Ph.D. 1968, D.Sc. 1973). After working (1977–80)…Fomalhaut
(Encyclopedia) FomalhautFomalhautfōˈməlhôtˌ [key], brightest star in the constellation Piscis Austrinus (southern fish); Bayer designation Alpha Piscis Austrini; 1992 position R.A. 22h57.3m, Dec. −29…Broecker, Wallace Smith
(Encyclopedia) Broecker, Wallace SmithBroecker, Wallace Smithbrōkˈər [key], 1931–2019, American geophysicist, b. Chicago, Ph.D. Columbia, 1958. He was a member of Columbia's faculty from 1959. In the…Slipher, Vesto Melvin
(Encyclopedia) Slipher, Vesto MelvinSlipher, Vesto Melvinslīˈfər [key], 1875–1969, American astronomer, b. Mulberry, Ind. From 1901 he was at Lowell Observatory, Flagstaff, Ariz., where he served as…Queloz, Didier Patrick
(Encyclopedia) Queloz, Didier Patrick, 1966–, Swiss astronomer, Ph.D. Univ. of Geneva, 1995. He has been a member of the faculty at the Univ. of Geneva since 2003 (professor from 2008) and since 2013…‘Oumuamua
(Encyclopedia) ‘Oumuamua‘Oumuamuaōm&oomacr;ˈəm&oomacr;ˈə [key], officially 1I/2017 U1 (‘Oumuamua), interstellar object, the first to be discovered in the solar system. Highly variable in…Delcassé, Théophile
(Encyclopedia) Delcassé, ThéophileDelcassé, Théophiletāôfēlˈ dĕlkäsāˈ [key], 1852–1923, French foreign minister. He began his career as a political journalist and then turned to politics. First…Lemonnier, Pierre Charles
(Encyclopedia) Lemonnier, Pierre CharlesLemonnier, Pierre Charlespyĕr shärl ləmônyāˈ [key], 1715–99, French astronomer. For many years he was professor of physics at the Collège de France. He studied…Trending
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