NASA @NASA
Why are we so excited about new Mars rock samples collected by @NASAPersevere? Some have the highest concentration of organics this rover has ever seen. This doesn’t necessarily mean life—we’ve got to bring them back to find out. Here are the next steps: https://t.co/uWyaZbvQzm https://t.co/SLsYbxrcwY — PolitiTweet.org