NASA’s Opportunity Mars rover discovered clay minerals at Cape York ridge along the rim of Endeavour crater – seen in this photo mosaic – which stands as the most favorable location for Martian biology discovered during her entire nearly 10 year long mission to Mars. Opportunity also established a new American driving record for a … Continue reading "Opportunity Discovers Clays Favorable to Martian Biology and Sets Sail for Motherlode of New Clues"