Watch the Falcon 9 test fire its engines ahead of Starlink launch (members only)

Launch of a SpaceX Crew Dragon capsule carrying four astronauts to the International Space Station has been delayed 24 hours to Friday because of bad weather in the Atlantic Ocean where the crew could be forced to ditch in an emergency, NASA announced Wednesday.

A SpaceX Falcon 9 rocket was raised vertical at Space Launch Complex 4-East at Vandenberg Air Force Base in California on Sunday ahead of a planned liftoff with Argentina’s SAOCOM 1A radar observation satellite, and the first landing of a SpaceX booster on the U.S. West Coast.

The launch includes 13 Starlink V2 Mini satellites that have Direct to Cell capabilities. Liftoff from pad 40 at Cape Canaveral Space Force Station happened at 2:11 p.m. EST (1911 UTC).