June 21, 2011

Phobos Slips Past Jupiter

On June 1 2001, 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

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