Live coverage: Indian PSLV launches with RISAT 2B radar satellite

SpaceX is preparing for liftoff Tuesday of its first mission for the U.S. Space Force, a launch from Cape Canaveral that will deploy a new GPS navigation satellite using a redesigned profile to allow the Falcon 9 rocket’s first stage booster to reserve enough propellant for landing on SpaceX’s drone ship in the Atlantic Ocean.

Virgin Orbit is setting modest expectations ahead of the company’s first attempt to reach orbit with a liquid-fueled air-launched rocket, emphasizing a hunger for flight data on the test launch, which could occur as soon as Monday off the coast of Southern California.

Watch a replay of the launch of a SpaceX Falcon 9 rocket from Cape Canaveral shortly after midnight Monday with the SES 12 communications satellite.