Question for the Planetary Scientists

I’m looking at a high-resolution photo from the Mars Express orbiter of the Mariner Valley, and see a dark, lens-shaped smudge on the left hand side of the image. There’s a crater with ejecta marks at the top of the smudge. Would that be consistent with a recent impact kicking up and depositing darker material on the surface?

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This entry was written by Bill Humphries and posted on December 23, 2004 at 12:00 am and filed under science. Bookmark the permalink. Follow any comments here with the Atom feed for this post. Both comments and trackbacks are currently closed.