Video: Highlights of second Expedition 50 spacewalk

NASA’s lead spacewalk flight director Royce Renfrew talks with public affairs office Rob Navias about the curtailed spacewalk by astronauts Tim Kopra and Tim Peake on January 15, 2016. Although the spacewalk’s major objective to replace a failed voltage regulator was a success, the spacewalk was cut short when a small water bubble had formed inside Kopra’s helmet.

Astronauts Terry Virts and space station commander Barry “Butch” Wilmore ventured back outside Sunday for their third spacewalk in eight days to complete initial preparations for upcoming dockings by commercially developed Boeing and SpaceX crew ferry ships.

SpaceX’s Dragon cargo craft ended a four-week mission Sunday with a parachute-assisted splashdown in the Pacific Ocean, returning from the International Space Station with more than 3,600 pounds of cargo, blood and urine samples, and specimens from a rodent research experiment aimed at helping patients with catastrophic bone injuries and osteoporosis.