Last updated on April 18, 2014 at 7:49 EDT
164 of 449


October 25, 2011
Astronaut Sandra Magnus, STS-126 mission specialist, listens to a question from a reporter during a STS-126 preflight press briefing at NASA's Johnson Space Center. Magnus is scheduled to join Expedition 18 as flight engineer after launching to the International Space Station on mission STS-126.