NASA @NASA
To understand the impacts of spaceflight, we compared changes in gene expression for identical twin astronauts - one who spent a #YearInSpace & one who remained on Earth. 👨‍🚀 Discover what our experts learned as we release our Twins Study tomorrow: https://t.co/UNJeY9YRxU https://t.co/EqmwHdkmM3 — PolitiTweet.org