Astronaut’s Condition That Led to Space Station Evacuation Remains a Mystery The New York Times He suddenly couldn't speak in space. NASA astronaut says his medical scare remains a mystery. NBC News Mike Fincke: NASA astronaut medically evacuated from ISS says he lost ability to speak while in space independent.co.uk Astronaut Who Had Medical Scare in Space Says Doctors Don't Know Why People.com Mystery medical episode that left NASA astronaut unable to speak highlights major space risk Live Science