19. Mars' Moon, Phobos

19. Mars' Moon, Phobos

Courtesy of NASA/JPL-Caltech/University of Ariz.

http://marsprogram.jpl.nasa.gov/mro/gallery/press/20080409a.html


The most striking feature on Phobos, Mars' larger moon, is Stickney Crater in the lower left. The crater is about 21 km (13 miles) across.
Light colored streaks on the indisde of Stickney are landslides. Troughs and crater chains that are visible outside the crater are probably the result of material ejected from impacts on Mars which flew off and hit Phobos.