NASA @NASA
Imagine a future where our @NASAPersevere rover found definitive evidence of life on Mars. What would happen next? ποΈIn this new podcast episode of #GravityAssist, our Chief Scientist Jim Green, the Explore Mars Society and others weigh in: https://t.co/KUqF0lCkPb https://t.co/ke4vcyJwGV — PolitiTweet.org