Neil deGrasse Tyson @neiltyson
Mars colony, growing food in space, supply chains, politics, the overview effect, and zero-G vomit. A @StarTalkRadio conversation with @NASA astronauts Dr. @Astro_Jessica Meir & @Astro_Christina Koch aboard the International @Space_Station [Video: 20 min] https://t.co/ttifvJWAo1 — PolitiTweet.org