Video: Falcon 9 test-fired before fourth Starlink launch (members only)

The walkway astronauts will use to board SpaceX’s Crew Dragon capsule before missions to the International Space Station was added to historic launch pad 39A on Monday.

Liftoff from Space Launch Complex 40 occurred at 7:16:10 a.m. EST (1216:10 UTC), but views of the launch were obscured by a thick blanket of fog.

A new GPS satellite rocketed into orbit from Cape Canaveral on top of a SpaceX Falcon 9 launcher Tuesday on the way to replace one of the more than 30 other spacecraft helping guide everything from military munitions to motorists.