L-R: Roberto Vittori, Greg Johnson, Mark Kelly, Mike Fincke, Greg Chamitoff, Drew Feustel. Photo: NASA/Kim Shiflett/June 1, 2011
The orbiter has spent 299 days in space and traveled more than 122.8 million miles during its 25 flights.
Read more...Aboard the International Space Station from left are Paolo Nespoli, Dmitry Kondratyev and Cady Coleman. Photo: NASA/May 21, 2011
A rare undocking procedure was approved.
Read more...Pope Benedict XVI talks with crews on the International Space Station. Image: European Space Agency/May 21, 2011
The pope's talk with shuttle and space station crews lasted about 20 minutes.
Read more...Endeavour lifts off for the STS-134 mission to the International Space Station. Photo: Justin Sullivan/Getty Images/May 16, 2011
The shuttle is en route to the International Space Station for a 16-day mission.
Read more...President Obama and his family tour Kennedy Space Center in Florida. Photo: NASA/Bill Ingalls/April 29, 2011
President Obama still visited Kennedy Space Center and spoke with Rep. Giffords there.
Read more...Endeavour on Launch Pad 39B at Kennedy Space Center. Photo: NASA/Dimitri Gerondidakis/April 18, 2009
President Obama and Rep. Giffords are expected to watch.
Read more...Kelly took time off to care for wife, Congresswoman Gabrielle Giffords.
Read more...NASA astronaut Mark Kelly married Rep. Gabrielle Giffords (D-AZ) in 2007. Photo: Giffords Flickr photostream
Endeavour's STS-134 mission commander Mark Kelly will focus on caring for Giffords, who was shot in the head.
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