NASA @NASA
"I'm happy to say that not one.. but the first two samples of another planet are prepped and stowed as the first official candidate samples to be returned to Earth by a future mission." - Lori Glaze of #NASAScience on our @NASAPersevere Mars rover's successful sample collection. https://t.co/a7UVi9FLkH — PolitiTweet.org