This color view of a mineral vein called "Homestake" comes from the panoramic camera on NASA's Mars Exploration Rover Opportunity. | NASA/JPL-Caltech/Cornell/ASU

Ancient Mars Water? Mineral Find Makes It a Slam-Dunk

Ancient Mars water? Mineral find makes it a slam-Dunk. Learn about the Mars rover find that shows the best evidence yet that water flowed on Mars long ago.

Published On 12/08/2011
3:00 AM EST