Space shuttle Discovery lifts off from the Kennedy Space Center in Cape Canaveral, Fla., Thursday, Feb. 24, 2011. Discovery, the world's most traveled spaceship, thundered into orbit for the final ... more 
Space shuttle Discovery lifts off from the Kennedy Space Center in Cape Canaveral, Fla., Thursday, Feb. 24, 2011. Discovery, the world's most traveled spaceship, thundered into orbit for the final time Thursday, heading toward the International Space Station on a journey that marks the beginning of the end of the shuttle era. less 
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Associated Press | Photo By Wilfredo Lee
Sat, Feb 26, 2011 11:12 AM EST