Explanation: The forecast for Venus is cloudy, cloudy, cloudy. Although similar to the Earth in size and mass, Venus' slightly closer orbit to the Sun create for it a much thicker atmosphere and a much hotter surface. The thick atmosphere was photographed above in ultraviolet light in 1979 by the Pioneer Venus Orbiter. Whether or not Venus has a moon was the center of a great controversy in the 1700s and 1800s. Today we know Venus has no natural satellites. Venus's extremely uncomfortable climate was likely caused by a runaway greenhouse effect. Could Earth ever undergo runaway greenhouse heating like Venus?

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Authors & editors: Robert Nemiroff (MTU) & Jerry Bonnell (USRA)
NASA Web Site Statements, Warnings, and Disclaimers
NASA Official: Jay Norris. Specific rights apply.
A service of: LHEA at NASA / GSFC
& Michigan Tech. U.

Publikacii s klyuchevymi slovami: Venus - ultraviolet - Ul'trafioletovoe izluchenie - Venera - oblaka Publikacii so slovami: Venus - ultraviolet - Ul'trafioletovoe izluchenie - Venera - oblaka
Sm. takzhe: Planety i polnoe zatmenie S dobrym utrom, Luna Fazy Venery Dnevnaya Luna vstrechaetsya s Utrennei zvezdoi Skala treh planet Venera, Luna i dymyashaya gora Serpy Venery Vse publikacii na tu zhe temu >>