China Plans to Shut Down Coal Plants, SpaceX Launches and Lands, Curiosity Finds Evidence of Water, and More.
Back in the day, Mars had more in common with Earth than previously thought.
For the first time in 40 years, we see oxygen on the Red Planet.
Scientists have discovered an ancient cloud of gas that may contain clues about the beginning of the universe.
Over 200,000 people subscribe to our newsletter.
Sign in to join the conversation.