A member of the Expedition 35 crew is shown in this still image from NASA television venturing outside the International Space Station for a six-hour spacewalk to deploy and retrieve several science experiments and install a new navigational aid April 19, 2013.
Russian cosmonaut Oleg Novitskiy is helped out of the Russian Soyuz space capsule after it landed in the steppes of Kazakhstan, northeast of the town of Arkalyk, in this still image taken from video shot on March 16, 2013. The capsule made a "bull's eye" landing on Saturday, delivering a Russian-U.S. trio from the International Space Station (ISS), a day after its originally scheduled touchdown was delayed by foul weather.
This frame grab made available by NASA TV shows a view of the SpaceX Dragon anchoring to the International Space Station Sunday, March 3, 2013. SpaceX, the California-based company founded by billionaire Elon Musk, had to struggle with the Dragon following its launch Friday from Cape Canaveral. The spacecraft is delivering more than 1 ton of supplies to the the International Space Station.
In an image made from NASA TV, space station commander Sunita Williams, center, works on a leaky radiator system outside the International Space Station on Thursday, Nov. 1, 2012, just hours after barely dodging a menacing piece of orbiting junk. Williams and Japanese astronaut Akihiko Hoshide wasted no time installing jumper cables outside their home for the past four months. Their objective was to isolate a suspect radiator to help determine whether that is the source of the ammonia coolant leak, and deploy a spare radiator to bypass the troublesome section.
This framegrab image provided by NASA TV shows space shuttle Endeavour atop NASA's Shuttle Carrier Aircraft, or SCA, doing a low level flyby at the Shuttle Landing Facility in the early morning hours at NASA's Kennedy Space Center on Wednesday, Sept. 19, 2012 in Cape Canaveral, Fla. The SCA, a modified 747 jetliner, will fly Endeavour to Los Angeles where it will be placed on public display at the California Science Center. This is the final ferry flight scheduled in the Space Shuttle Program era.
ISS Expedition 32 flight engineers Sunita Williams of NASA and Akihiko Hoshide of the Japan Aerospace Exploration Agency perform a spacewalk to complete an equipment installation outside the International Space Station in this NASA video image captured on September 5, 2012.
