STS-126 mission specialist Sandra Magnus talks during a news conference in Houston
STS-126 mission specialist Sandra Magnus (R) talks during a news conference with fellow Endeavour crewmembers (L-R) Commander Christopher Ferguson, Pilot Eric Boe, Donald Pettit, Stephen Bowen, Heidemarie Stefanyshyn-Piper and Robert Kimbrough at the Johnson Space Center in Houston November 3, 2008. Dubbed the "Extreme Home Improvement" mission, Endeavour, scheduled for launch November 13th will deliver seven tons of supplies and equipment and will perform four spacewalks to repair the International Space Station's solar arrays. REUTERS/Donna Carson (UNITED STATES)