Live coverage: SpaceX Falcon Heavy launches NASA’s Psyche on mission to a metal asteroid

A Northrop Grumman Antares rocket stands on pad 0A at Wallops Island, Virginia, on a frigid morning hours before a planned liftoff with more than 8,000 pounds of cargo heading for the International Space Station.

Pettit will fly to the orbiting outpost alongside Russian cosmonauts Alexey Ovchinin and Ivan Vagner on the Soyuz MS-26 mission. Liftoff from the Baikonur Cosmodrome is set for 12:23 p.m. EDT (1623 UTC).

Powering off the planet just after sunset Friday, a SpaceX Falcon 9 rocket took off from Cape Canaveral with the multi-mission SES 9 communications satellite to link millions of homes, businesses, ships and airplanes across the Asia-Pacific.