Watch the Falcon 9 launch from pad 39A

SpaceX fired three Raptor engines on a prototype of the company’s Starship vehicle Tuesday, accomplishing another milestone on the road toward testing of the methane-fueled rocket at higher altitudes.

SpaceX launch crews rolled out the company’s next Falcon 9 rocket to pad 39A at the Kennedy Space Center in Florida, then lifted the two-stage launcher vertical for a hold-down engine firing Thursday in preparation for launch next week with a South Korean-owned commercial communications satellite.

SpaceX will make its latest attempt following scrubs due to ground systems issues and then poor weather. Liftoff from Pad A at Starbase is scheduled for 6:30 p.m. CDT (7:30 p.m. EDT / 2330 UTC).