Mike Fincke, who prompted NASA's first medical evacuation earlier this year, said on Friday that doctors still don't know why he suddenly fell sick at the International Space Station. CAPE CANAVERAL, Fla. — The astronaut who prompted NASA's first medical evacuation earlier this year said Friday that doctors still don't know why he suddenly fell sick at the International Space Station. Four-time space flier Mike Fincke said he was ... [2594 chars]