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Дата изменения: Mon Jun 17 11:17:03 2002
Дата индексирования: Sat Dec 29 06:55:55 2007
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Jupiters Rings Revealed
Astronomy Picture of the Day
    


Jupiters Rings Revealed
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Jupiters Rings Revealed
Credit: M. Belton (NOAO), J. Burns (Cornell) et al., Galileo Project, JPL, NASA
Explanation: Why does Jupiter have rings? Jupiter's rings were discovered in 1979 by the passing Voyager 1 spacecraft, but their origin was a mystery. Data from the Galileo spacecraft currently orbiting Jupiter later confirmed that these rings were created by meteoroid impacts on small nearby moons. As a small meteoroid strikes tiny Adrastea, for example, it will bore into the moon, vaporize, and explode dirt and dust off into a Jovian orbit. Pictured above is an eclipse of the Sun by Jupiter, as viewed from Galileo. Small dust particles high in Jupiter's atmosphere, as well as the dust particles that compose the rings, can be seen by reflected sunlight.

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Authors & editors: Robert Nemiroff (MTU) & Jerry Bonnell (USRA)
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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: Jupiter - rings - dust
Publications with words: Jupiter - rings - dust
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