Launch Pad 39A

Rain showers and gloomy clouds blew through NASA’s Kennedy Space Center on Monday evening, but it was high winds that prevented liftoff of a SpaceX Falcon 9 rocket early Tuesday with a commercial communications satellite. Launch has been rescheduled for Thursday at 1:35 a.m. EDT (0535 GMT).

A 229-foot-tall (70-meter) SpaceX Falcon 9 rocket stood on launch pad 39A on Monday afternoon on the eve of a scheduled blastoff with the EchoStar 23 television broadcast satellite.

SpaceX’s Falcon 9 rocket is set for liftoff from Cape Canaveral early Tuesday, heading due east over the Atlantic Ocean to deliver the EchoStar 23 communications satellite into orbit 34 minutes later.

Held down by heavy-duty restraints, a Falcon 9 rocket fired up its nine Merlin engines for more than three seconds Thursday evening in a key readiness test before launching with a commercial television broadcast satellite next week.