Live coverage: Kennedy Space Center to reopen Friday

The rescheduled test came a day after a launch day rehearsal with the Crew-11 astronauts and cosmonaut in the loop, referred to as a dry dress rehearsal. The Crew-11 launch is currently scheduled for Thursday, July 31 at 12:09 p.m. EDT (1609 UTC).

The 8-million-pound mobile service tower is retracted from around the Atlas 5 rocket, revealing the 20-story-tall vehicle for liftoff from Vandenberg Air Force Base, California.

A SpaceX-owned supply ship arrived at the International Space Station on Sunday with 2.4 tons of cargo, including space debris and solar energy monitors mounted in the Dragon spacecraft’s external payload bay and more than 3,400 pounds of gear inside its reused pressurized module.