The Martian moon Phobos is cratered, lumpy and about 16.8 miles long, or 3 miles longer than the island of Manhattan. According to a recent study, the moon is also unusually light. Planetary scientists found that Phobos is probably not a solid object, and that as much as 30 percent of the moon’s interior may be empty space.
The spacecraft Mars Express snapped this photo of the Martian moon Phobos on March 7.h
Saturday, July 24, 2010
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