Tune in for a science update from space! Before they head home after six months on the @Space_Station, our #Crew7 astronauts are talking with @SenBillNelson about their @ISS_Research. Watch on NASA+ next Wednesday, Feb. 21, at 10:35am ET (1535 UTC): t.co/PkrY4GR6rm t.co/UTsoKxaX1R