Space Station's Expedition 35 Mission in Photos

Chris Hadfield and the Chieftains

NASA

Canadian astronaut Chris Hadfield (top left) and NASA astronauts Cady Coleman and Dan Burbank (in blue flight jackets) perform with the traditional Irish band The Chieftains on Feb. 15, 2013, at Jones Hall in Houston during the bands 50th anniversary tour. Hadfield prerecorded his portion on the International Space Station.

Soyuz TMA-08M Spacecraft Lowered

NASA/Victor Zelentsov

On March 22, 2013, at the Integration Facility at the Baikonur Cosmodrome in Kazakhstan, the Soyuz TMA-08M spacecraft is lowered into place for its encapsulation into the third stage of a Soyuz booster rocket.

Ammonia-Leak Spacewalk Prep

Canadian Space Agency/Chris Hadfield (Cmdr_Hadfield)

Canadian Space Agency astronaut Chris Hadfield posted this photo on his Twitter feed on May 11, 2013 of NASA astronauts Dr. Tom Marshburn and Chris Cassidy in the final stages of readying the suits and airlock for their ammonia-leak spacewalk. “A full day's prep,” Hadfield said on Twitter.

Astronaut Suited Up for Ammonia-Leak Spacewalk

Canadian Space Agency/Chris Hadfield (Cmdr_Hadfield)

“Well-dressed for a day's work outdoors. Friend for life,” Canadian Space Agency astronaut Chris Hadfield said of Dr. Tom Marshburn on May 11, 2013 via Twitter. The astronaut replaced an ammonia pump box while seeking a coolant leak outside the International Space Station.

Chris Cassidy Dressed for Spacewalk

Canadian Space Agency/Chris Hadfield (Cmdr_Hadfield)

Canadian Space Agency astronaut Chris Hadfield posted this photo on his Twitter feed on May 11, 2013 of NASA astronaut Chris Cassidy. “Chris Cassidy, Navy SEAL and lead spacewalker today. The nicest iron man you'll ever meet.” The astronaut replaced an ammonia pump box while seeking a coolant leak outside the International Space Station.

Spacewalkers Climb Out of the Airlock

Canadian Space Agency/Chris Hadfield (Cmdr_Hadfield)

Canadian Space Agency astronaut Chris Hadfield posted this photo on his Twitter feed on May 11, 2013 of NASA astronauts Dr. Tom Marshburn and Chris Cassidy as they began their spacewalk to identify and fix an ammonia coolant leak. “Climbing out of the airlock, quite the commute to work!” Hadfield said via Twitter.

Chris Hadfield Snaps Photo of Spacewalkers

Canadian Space Agency/Chris Hadfield (Cmdr_Hadfield)

Canadian Space Agency astronaut Chris Hadfield posted this photo on his Twitter feed on May 11, 2013 of NASA astronauts Dr. Tom Marshburn and Chris Cassidy during their spacewalk. “Here's looking at you. Chris and Tom take a minute with visors to look up-sun at my camera in the window,” Hadfield posted on Twitter.

Spacewalkers Approach Orbital Sunset

Canadian Space Agency/Chris Hadfield (Cmdr_Hadfield)

Canadian Space Agency astronaut Chris Hadfield posted this photo on his Twitter feed on May 11, 2013 of NASA astronauts Dr. Tom Marshburn and Chris Cassidy during their spacewalk. “Approaching orbital sunset, the harshest of light, a blackness like endless velvet,” Hadfield said via Twitter.

Astronauts ‘Light the Universe’ During Spacewalk

Canadian Space Agency/Chris Hadfield (Cmdr_Hadfield)

“Chris and Tom, helmet lights doing their best to light the universe on the dark side of the Earth,” Canadian Space Agency astronaut Chris Hadfield said on his Twitter feed on May 11, 2013 of NASA astronauts Dr. Tom Marshburn and Chris Cassidy during their spacewalk.

Astronaut Tom Marshburn with Robot R 2 Aboard ISS

NASA

NASA astronaut Tom Marshburn (pictured in background), Expedition 35 Flight Engineer, performs the second of a two-day session of Taskboard and Tele-operations with R 2 onboard the International Space Station. R 2 is the dexterous humanoid robot that was carried up to the station by one of NASA's final shuttle flights in 2011. This image was released April 25, 2013.

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