On Saturday afternoon, NASA astronauts Chris Cassidy and Tom Marshburn successfully completed a spacewalk to repair a leaky component on the outside of the International Space Station.

FORBES: Astronauts Perform Emergency Spacewalk To Fix Ammonia Leak

Its astronauts Steve Swanson and Richard Arnold undertook the six-hour, seven-minute spacewalk required to install the truss.

BBC: Spacewalkers bolt in power unit