4K Video: The launch of Crew 4 as seen from the press site

As expected, NASA announced Wednesday that the first unpiloted test flight of a SpaceX Falcon 9 rocket and a Crew Dragon astronaut ferry ship has slipped from later this month to March 2. The first unpiloted flight of Boeing’s Starliner capsule is now targeted for the April timeframe.

A Crew Dragon capsule ferried four astronauts into space Sunday night after a rumbling departure from the Kennedy Space Center in Florida, setting off on a 27-hour pursuit of the International Space Station on SpaceX’s first operational crew rotation flight to the orbiting outpost.

SpaceX ran through countdown and fueling procedures with a Falcon 9 rocket at NASA’s Kennedy Space Center in Florida on Sunday, culminating in ignition of the booster’s nine first stage Merlin engines in a customary check of the launcher’s readiness before liftoff Thursday with a Dragon supply ship for the International Space Station.