 |
Астронет: Астрономическая картинка дня Ультрафиолетовая Венера http://variable-stars.ru/db/msg/1163338/eng |
Credit & Copyright:
Pioneer Venus Orbiter Team,
NASA
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?
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.