NASA @NASA
"I think if we find life... it would be different from what we know on our own planet." In the new #GravityAssist, our Chief Scientist Jim Green & Dr. Athena Coustenis of @Obs_Paris explain why our solar system's icy moons fascinate astrobiologists: https://t.co/3kxb1a8UHk https://t.co/y9qeS3ZGdK — PolitiTweet.org