Video: NASA officials preview space station battery replacement spacewalks

Astronauts Peggy Whitson and Jack Fischer put on spacesuits Friday and headed outside the International Space Station for several repair and maintenance tasks, but the duo only completed part of their originally planned work after a leaky cooling umbilical delayed the start of their spacewalk.

Carrying three space station crew members back home after 173 days in orbit, the Russian Soyuz MS-02 landing craft touched down in Kazakhstan on Monday after a parachute-assisted descent through clear skies.

NASA astronaut Nick Hague will take the place of Anne McClain on a spacewalk Friday outside the International Space Station, teaming up with crewmate Christina Koch  to continue a series of battery upgrades on an excursion that would have been the first all-female spacewalk in history.