NASA's Liberty Star vessel returned to Port Canaveral on July 10th towing Space Shuttle Atlantis' right Solid Rocket Booster (SRB). The vessel and crew successfully retrieved the SRB after it splashed down in the Atlantic Ocean off the Florida coast. The shuttle's left SRB did not return until the next day due to mechanical difficulties with it's towing vessel, Freedom Star. The SRB's help propel the shuttle into orbit in addition to the orbiter's main engines. Click on the image to view the entire gallery from the final launch.