JSC2010-E-046808 (5 April 2010) --- Astronauts Rick Sturckow (foreground) and George Zamka, both spacecraft communicators (CAPCOM) for the STS-131 mission, watch the big screens in the space shuttle flight control room in the Johnson Space Center's Mission Control Center during launch countdown activities a few hundred miles away in Florida, site of space shuttle Discovery's STS-131 launch.