SpaceX rocket booster to land on drone ship Update 1:32 a.m.: This morning's mission marks the Falcon 9 first-stage booster’s fifth flight, SpaceX reported. This relatively new booster previously launched SES O3b mPOWER-E, Crew-10, Bandwagon-3 and one Starlink mission Following stage separation, crews expect the booster to land on the SpaceX drone ship Just Read the Instructions in the Atlantic Ocean 8 minutes, 13 seconds after liftoff. SpaceX Falcon 9 fueling is now underway Update 1:23 a.m.: Falcon 9 fueling procedures are now underway, billowing white water vapor at Launch Complex 40 indicates. That means the Starlink mission countdown is locked in to lift off at 1:55 a.m. without any delays, or else today's launch must be postponed to a later date. SpaceX Falcon 9 launch countdown Update 1:10 a.m.: Here's a rundown of SpaceX’s upcoming behind-the-scenes Falcon 9 launch countdown timeline. T-minus: 38 minutes: SpaceX launch director verifies “go” for propellant load. 35 minutes: Rocket-grade kerosene and first-stage liquid oxygen loading begins. 16 minutes: Second-stage liquid oxygen loading begins. 7 minutes: Falcon 9 begins engine chill prior to launch. 1 minute: Command flight computer begins final prelaunch checks; propellant tank pressurization to flight pressure begins. 45 seconds: SpaceX launch director verifies “go” for launch. 3 seconds: Engine controller commands engine ignition sequence to start. 0 seconds: Liftoff.