
NASA @NASA
"It once held a lake. And what we're going to do, as soon as we get there, is to explore the rocks that were deposited in that lake for biosignatures - for evidence of ancient life." - @NASAPersevere scientist Ken Farley explains what the rover will study at Jezero Crater, Mars. https://t.co/325enIhNMC — PolitiTweet.org