Public domain
Steep Knudsen Ridge Along Marathon Valley on Mars
From the collection of NASA Image and Video Library. Free to download, adapt and use — no permission needed.
About this work
This scene from NASA Mars Exploration Rover Opportunity looks upward at Knudsen Ridge on the southern edge of Marathon Valley from inside the valley.
NASA Image and Video Library’s own descriptionSubjects
Credit lineSteep Knudsen Ridge Along Marathon Valley on Mars. NASA/JPL, 2016-02-25. Public domain. ID: PIA20318.
