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

The Russian Soyuz MS-03 spacecraft and booster rocket were rolled out to the launch pad at the Baikonur Cosmodrome on Monday in preparation for liftoff Thursday at 3:20 p.m. EST (2020 GMT) on a two-day trek to the International Space Station.

A SpaceX Falcon 9 rocket fired its nine first stage engines for a brief hold-down firing Friday at Cape Canaveral, passing a key milestone before launch July 24 with a Dragon space station resupply ship.

Astronauts Jeff Williams and Kate Rubins ventured outside the lab complex Friday for a long-awaited spacewalk to attach a new docking mechanism, the first of two that will be used by U.S. crew ferry ships being built by Boeing and SpaceX to carry astronauts to and from the outpost, ending NASA’s sole reliance on Russian Soyuz spacecraft.