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Horrocks, Jeremiah
(Encyclopedia)Horrocks or Horrox, Jeremiah both: hŏrˈəks [key], 1618?–1641, English astronomer. He made the first observation of the transit of Venus. His Venus in sole visa, which narrates this experience, wa...Sagan, Carl Edward
(Encyclopedia)Sagan, Carl Edward sāˈgən [key], 1934–96, American astronomer and popularizer of science, b. New York City. Early in his career he investigated radio emissions from Venus and concluded that the c...In
(Encyclopedia)In, symbol for the element indium. ...Pallas, Peter Simon
(Encyclopedia)Pallas, Peter Simon pāˈtər zēˈmôn päˈläs [key], 1741–1811, German naturalist and explorer. He became (1768) professor at the Academy of Sciences, St. Petersburg. In 1769, Pallas was a membe...National Radio Astronomy Observatory
(Encyclopedia)National Radio Astronomy Observatory (NRAO), federal observatory for radio astronomy, founded in 1956 and operated under contract with the National Science Foundation by Associated Universities, Inc.,...Nuffield Radio Astronomy Laboratories
(Encyclopedia)Nuffield Radio Astronomy Laboratories: see Jodrell Bank Observatory. ...Lairesse, Gerard de
(Encyclopedia)Lairesse, Gerard de gāˈrärt də lārĕsˈ [key], 1641–1711, Flemish painter of allegorical and religious subjects, b. Liège. Most of his life was spent in Holland, where he achieved great succes...Young, Charles Augustus
(Encyclopedia)Young, Charles Augustus, 1834–1908, American astronomer, b. Hanover, N.H., grad. Dartmouth, 1853. He discovered the reversing layer of the solar atmosphere and proved the gaseous nature of the sun's...terrestrial planet
(Encyclopedia)terrestrial planet, the earth or a planet that resembles the earth in its physical characteristics. The terrestrial planets in the solar system are the earth, Mercury, Venus, and Mars. These planets a...Ptolemaic system
(Encyclopedia)Ptolemaic system tŏlˌəmāˈĭk [key], historically the most influential of the geocentric cosmological theories, i.e., theories that placed the earth motionless at the center of the universe with a...Browse by Subject
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