Quantcast
Posted on: 09 Feb, 2006
« 1 2 3 4 5 6 7 ... »

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.

File size: 440kb

Latest Thoughts

Quote of the Day

We cannot cheat on DNA. We cannot get round photosynthesis. We cannot say I am not going to give a damn about phytoplankton. All these tiny mechanisms provide the preconditions of our planetary life. To say we do not care is to say in the most literal sense that 'we choose death.'
- Barbara Ward (1914 - 1981), British author, educator.

Fact of the Day

There are odor technicians in the perfume trade with the olfactory skills to distinguish 19,000 different odors at twenty levels of intensity each.

Word of the Day

redOrbit Friends

Quiz Me

This is the 2nd most abundant element in the Earth's crust?
Carbon
Iron
Sodium
Silicon
or View Results