NASA @NASA
As humans plan to explore the Moon & Mars, we can't bring everything with us from Earth. So we're using @Space_Station to study how microbes grow on and alter planetary rocks in microgravity to see how they interact differently outside of Earth’s gravity: https://t.co/Lq4TdjDJGL https://t.co/UpjFtJzXcc — PolitiTweet.org