Video: Soyuz MS-01 leaves the space station for landing

An electrical problem on SpaceX’s drone ship parked just off the coast of Cape Canaveral prompted SpaceX to scrub a Falcon 9 launch attempt early Friday, delaying the start of a resupply mission to the International Space Station by 24 hours.

Two NASA astronauts will take part in the first all-female spacewalk this week, a critical outing to restore lost power in the wake of an equipment failure that cropped up after new batteries were installed in the International Space Station’s solar power system during two earlier spacewalks.

The last of Japan’s current series of HTV cargo freighters arrived at the International Space Station Monday with a fresh set of lithium-ion batteries, ready for installation on the research lab’s solar power truss after the scheduled docking of a two-man crew on a SpaceX Dragon spaceship later this week.