NASA @NASA
This week at NASA: Mars spacecraft determine the source of a big marsquake, scientists map greenhouse gas super-emitters, and the #LucyMission spacecraft takes pictures of the Earth and the Moon as it passes by. Subscribe for more space in your life: https://t.co/MyG37QzGhO https://t.co/l5mQxKfGjh — PolitiTweet.org