June 26, 2017 3:19 PM
NASA's Mars rover Opportunity examining rocks at edge of Endeavour Crater for signs that may either transported by flood or eroded by wind
NASA's Mars rover, Opportunity, is examining rocks at the edge of Endeavour Crater for signs that they may have been either transported by a flood or eroded in place by wind. The features were seen just outside the crater rim's crest above "Perseverance Valley," which is carved i...