The orbiter has spent 299 days in space and traveled more than 122.8 million miles during its 25 flights.
Read more...A rare undocking procedure was approved.
Read more...The pope's talk with shuttle and space station crews lasted about 20 minutes.
Read more...The shuttle is en route to the International Space Station for a 16-day mission.
Read more...President Obama still visited Kennedy Space Center and spoke with Rep. Giffords there.
Read more...President Obama and Rep. Giffords are expected to watch.
Read more...Kelly took time off to care for wife, Congresswoman Gabrielle Giffords.
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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