Posted on: 09 Feb, 2006
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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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Dissent is the native activity of the scientist, and it has got him into a good deal of trouble in the last years. But if that is cut off, what is left will not be a scientist. And I doubt whether it will be a man. - Jacob Bronowski (1908 - 1974)
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Pronunciation: /vuh-LISH-in/
v : the act of making a conscious choice
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