Evidence for more recent clay formation on Mars discovered
Monday, December 14, 2015 - 15:45
in Astronomy & Space
Clays and other minerals formed when rocks are altered by water have been found in multiple locations on Mars. It's been assumed that these minerals probably formed in the earliest Martian epoch, over 3.7 billion years ago. But a new study finds that later clay formation might have been more common than many scientists thought.