Atlantis lifts off for mission STS-135, the last space shuttle flight. Photo: NASA/Bill Ingalls/July 8, 2011
The flight is the 135th.
Expedition 28 trio Mike Fossum, Sergei Volkov and Satoshi Furukawa. Photo: Gagarin Cosmonaut Training Center
The trio will arrive Thursday.
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.
An artist's rendering of the Multi-Purpose Crew Vehicle in deep space. Image: John Frassanito & Associates
Congress wants one by 2016.
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.
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.
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.
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.
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.
The International Space Station. Photo: NASA/March 7, 2011
The all-clear was issued around noon PDT.