For decades, planetary scientists have suspected that ancient Mars was a much warmer, wetter environment than it is today, but estimates of just how much water Mars has lost since its formation vary widely. Now, new isotopic measurements by researchers reveal that an ocean once covered approximately twenty percent of the Martian surface. This new picture of early Mars is considerably wetter than many previous estimates, raising the odds for the ancient habitability of the Red Planet. | NASA’s Go

In preparation to search for ancient life on Mars, our #Mars2020 rover scientists visit the Australian Outback to investigate the oldest evidence for life on Earth. Though seemingly unrelated, the two locations share some eerie similarities. Details: https://go.nasa.gov/33TjgoD | NASA - National Aeronautics and Space Administration