Space Station Live: October 7, 2015

Astronauts Barry “Butch” Wilmore and Terry Virts floated outside the International Space Station Saturday and installed wiring needed for two new docking mechanisms that will be attached later this year for use by Boeing and SpaceX crew capsules.

NASA has ordered four additional launches to deliver cargo to the International Space Station in 2017 — three from SpaceX and one from Orbital ATK — to cover the research lab’s logistics needs until a new set of resupply contracts take effect.

Three space station fliers — the outgoing NASA commander and two Russian cosmonauts — undocked and returned to Earth Wednesday, ending a 167-day stay in space with a communications blackout that left the crew out of contact with flight controllers during much of the trip home.