NASA Rover Finds Rare Mars Rock With Clues of Ancient Water

Friday, September 16, 2011 - 16:30 in Astronomy & Space

Scientists think rivers of water used to flow on Mars.

Read the whole article on Space.com

More from Space.com

Latest Science Newsletter

Get the latest and most popular science news articles of the week in your Inbox! It's free!

Check out our next project, Biology.Net