Photo Gallery: Shuttle booster back in port

The right-hand solid rocket booster that helped push space shuttle Atlantis into orbit arrived back in port Sunday. Liberty Star, one of two booster recovery ships, towed the 150-foot-long rockets back to shore for a thorough cleaning. The boosters are reusable, but with no shuttle flights left on the manifest, officials plan to store the motor segments for future ground and flight testing for a heavy-lift rocket. Photos: Ben Cooper/Spaceflight Now

MORE BOOSTER PHOTOS >

Space models