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Cassini image: Dark side of Enceladus

Enceladus looks as though it is half lit by sunlight in this view from NASA's Cassini spacecraft, but looks can be deceiving. The area on the right, where surface features can be made out, are actually illuminated by light ...

dateAug 26, 2015 in Space Exploration
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Dust storms on Mars

In the 1870's astronomers first noted the presence of yellow clouds on the surface of Mars and suggested they were caused by windblown dust. Today, dust storms on Mars are well known and those that display visible structures ...

dateAug 24, 2015 in Space Exploration
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What is A dwarf planet?

The term dwarf planet has been tossed around a lot in recent years. As part of a three-way categorization of bodies orbiting the sun, the term was adopted in 2006 due to the discovery of objects beyond the orbit of Neptune ...

dateAug 18, 2015 in Space Exploration
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New technology may illuminate mystery moon caves

It's widely believed that the moon features networks of caves created when violent lava flows tore under the surface from ancient volcanoes. Some craters may actually be "skylights" where cave ceilings have crumbled.

dateAug 17, 2015 in Engineering
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