Video: Falcon 9 rocket lifts off from pad 39A (members only)

The SpaceX Falcon 9 rocket slated to launch two NASA astronauts into orbit May 27 test-fired its nine Merlin booster engines Friday, May 22, on launch pad 39A at the Kennedy Space Center in Florida.

Launch of the Starlink 11-9 mission carrying 27 satellites for SpaceX’s internet service slipped a day from Sunday to Monday. Liftoff from pad 4 East at Vandenberg Space Force Base happened at 1:42 p.m. PDT (4:42 p.m. EDT, 2042 UTC).

A bad weather forecast has prompted Japanese space officials to delay the launch of an H-2A rocket with a high-resolution government-owned reconnaissance satellite by at least 48 hours until Monday night, U.S. time.