Mars may have been more Earth-like than we thought, discovery of oxygen-rich rocks revealsMars may have been more Earth-like than we thought, discovery of oxygen-rich rocks reveals - Livescience.com
livescience.comSubmitted by livescience8748 in science
Newfound rocks on Mars suggest the planet may have once sported an oxygen-rich atmosphere, making it more Earth-like and hospitable to life than previously thought.