News tagged with impact crater

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Viking 1 examines Mars' Ophir Chasma

During its examination of Mars, the Viking 1 spacecraft returned images of Valles Marineris, a huge canyon system 5,000 km, or about 3,106 miles, long, whose connected chasma or valleys may have formed from ...

Aug 23, 2011 5 / 5 (2) 0