NASA Space Shuttle Missions

Canadian Space Agency astronaut Robert Thirsk (L) answers a question during an in-flight news conference from the International Space Station in this image from NASA TV October 6, 2009. Joining Thirsk are (L-R back row) Roman Romanenko, Maxim Suraev, Nicole P. Stott, Jeffrey N. Williams and (L-R front row) Commander Gennady I. Padalka, Spaceflight Participant Guy LalibertŽ, European space Agency astronaut Frank De Winne, and Michael R. Barratt. REUTERS/NASA TV (UNITED STATES SCI TECH) FOR EDITORIAL USE ONLY. NOT FOR SALE FOR MARKETING OR ADVERTISING CAMPAIGNS