
December 2006 Calendar - Global Callisto in Color
NASA/JPL/ DLR(German Aerospace Center)Download full size image
Bright scars on a darker surface testify to a long history of impacts on Jupiter's moon Callisto in this image of Callisto from NASA's Galileo spacecraft. The picture, taken in May 2001, is the only complete global color image of Callisto obtained by Galileo, which began orbiting Jupiter in 1995. Of Jupiter's four largest moons, Callisto orbits farthest from the giant planet. Callisto's surface is uniformly cratered but is not uniform in color or brightness. Scientists believe the brighter areas are mainly ice and the darker areas are highly eroded, ice-poor material.
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Quote of the Day
- Leon Trotsky (1879 - 1940), Russian revolutionary.
Fact of the Day
A cat keeps purring no matter if it is inhaling or exhaling, a baffling accomplishment.Word of the Day
verdant
Pronunciation: /VERD-int/
adj : covered with new, green vegetation; hence, young, inexperienced, naïve
"Three verdant freshmen asked me the same silly question."
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