Video: Phobos Slips Past Jupiter - As Seen By Mars Express

On June 1, 2011, Mars express watched as Phobos (the inner and larger of Mars' two moons) slipped past distant Jupiter. Mars Express is studying Phobos to help the Russian Phobos-Grunt mission prepare to land on the moon and grab a sample for return to Earth. Credit: ESA/DLR/FU Berlin (G. Neukum)

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