Ancient Ripples on Mars Reveal Possible Past Water
NASA’s Curiosity Rover has uncovered evidence of ancient liquid water on Mars. The rover discovered undulations resembling ripples, found in Gale Crater, thought to be dried-up lakes. These ripples, formed 3.7 billion years ago, suggest that water once flowed open to the atmosphere before being frozen. Curiosity, launched in 2011, has been studying Mars’ climate … Read more