Документ взят из кэша поисковой машины. Адрес оригинального документа : http://www.astronet.ru/db/xware/msg/1210002
Дата изменения: Mon Dec 5 10:46:10 2005
Дата индексирования: Tue Dec 25 22:39:19 2007
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Ice Fountains Discovered on Saturns Enceladus
Astronomy Picture of the Day
    


Ice Fountains Discovered on Saturns Enceladus
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Ice Fountains Discovered on Saturns Enceladus
Credit: Cassini Imaging Team, SSI, JPL, ESA, NASA
Explanation: Fountains of ice shoot out from Saturn's moon Enceladus. Clear discovery images of the fountains were made using observations from the robot Cassini spacecraft currently orbiting Saturn. During a recent pass, Cassini was programmed to look back toward the Sun where Enceladus would appear as a thin crescent. From this vantage point, particles emitted from the surface would better show themselves by reflecting sunlight. The tactic was successful -- the above frame shows several plumes emanating from regions previously known to contain gashes in the surface dubbed tiger stripes. Cassini detected an increase in particle emissions from these regions during a July flyby. Some of these ice particles likely contribute to the make up of Saturn's mysterious E ring.

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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.

Based on Astronomy Picture Of the Day

Publications with keywords: Enceladus - Saturn
Publications with words: Enceladus - Saturn
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