The all-clear was issued around noon PDT.
Read more...Crew will continue scientific research and perform station maintenance, NASA says.
Read more...Three other Expedition 26 members remain on the station to begin Expedition 27.
Read more...The shuttle flew its first mission in 1984.
Read more...The shuttle already completed 38 missions.
Read more...Kelly took time off to care for wife, Congresswoman Gabrielle Giffords.
Read more...But funding remains uncertain.
Read more...Endeavour's STS-134 mission commander Mark Kelly will focus on caring for Giffords, who was shot in the head.
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They will complete the mission in May.
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