Q&A with Mike Hawes, Lockheed Martin’s Orion program manager

SpaceX fired up nine Merlin main engines at the bottom of a previously-flown Falcon 9 booster Saturday at NASA’s Kennedy Space Center, running the rocket through a practice countdown before a scheduled liftoff Jan. 18 with a Crew Dragon capsule to test the human-rated ship’s high-altitude abort capability.

Images taken inside SpaceX facilities at Cape Canaveral and released by NASA Thursday show the Crew Dragon capsule and Falcon 9 booster assigned to an in-flight abort test of the new human-rated spaceship later this year, a prerequisite before astronauts climb aboard for a mission to the International Space Station.

After a one-day delay to wait for improved conditions in the offshore abort zone, SpaceX and NASA launched four astronauts at 5:49 a.m. EDT (0949 GMT) Friday aboard a Falcon 9 rocket and Crew Dragon spaceship from Kennedy Space Center in Florida. The astronauts docked with the International Space Station at 5:08 a.m. EDT (0908 GMT) Saturday for a planned six-month mission.