the asteroid would then have a period of revolution of about six years
71Vulcan (hypothetical planet) — Vulcan was a small planet proposed to exist in an orbit between Mercury and the Sun in a 19th century hypothesis. This hypothesis has now been rendered obsolete by Albert Einstein s theory of general relativity.Argument for Vulcan s existenceIn… …
72Uranus — This article is about the planet. For other uses, see Uranus (disambiguation). Uranus   …
73Chinese space program — This article is about the Chinese space program in general. For the current Chinese space agency since 1993, see China National Space Administration. The launch of Tianlian, Xichang Center The space program of the People s Republic of China is… …
74Yugoslavia — (Serbo Croatian, Croatian, Serbian, Slovene, Macedonian: Jugoslavija ; Cyrillic script: Југославија; literally in English: South Slavia or Land of South Slavs ) is a term that describes three political entities that existed successively on the… …
75Star Fleet Universe — Part of the article series on Star Fleet Universe Games Star Fleet Battles Federation Commander Federation and Empire Prime Directive (role playing game) Star Fleet Battle Force Star Trek: Starfleet Command Star Trek: Starfleet Command II:… …
76Rosario, Santa Fe — For other uses, see Rosario (disambiguation). Rosario   City of Rosario   Clockwise from top: the National Flag Memorial s tower and pro …
77Definition of planet — Photograph of the crescent planet Neptune (top) and its moon Triton (center) …
78Wide-field Infrared Survey Explorer — (WISE) WISE prior to its mission into orbit …
79Alhazen — For the Moon crater, see Alhazen (crater). For the asteroid, see 59239 Alhazen. Alhazen Alhazen (Ibn al Haytham) …
80Geologic time scale — This clock representation shows some of the major units of geological time and definitive events of Earth history. The Hadean eon represents the time before fossil record of life on Earth; its upper boundary is now regarded as 4.0 Ga.[1] Other… …
