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

SpaceX ran a Falcon 9 rocket through a customary preflight checkout Tuesday, filling it with super-cold propellants and firing its nine Merlin first stage engines in preparation for liftoff Friday on a resupply run to the International Space Station.

Crew members on the International Space Station over the weekend continued trying to pinpoint the location of a small air leak in the research outpost’s Russian Zvezda service module, one of the oldest sections of the orbiting laboratory.

Launched Sunday from Cape Canaveral Space Force Station atop a Falcon 9 rocket, the cargo Dragon closed out a 28-hour rendezvous with an ahead-of-schedule docking at the lab’s forward port at 7:05 a.m. EDT as the two spacecraft were passing 260 miles above the Ivory Coast of Africa.