Video: Change of command aboard International Space Station

Space station commander Jeff Williams and astronaut Kate Rubins plan to carry out their second spacewalk in two weeks Thursday, venturing back outside to retract a cooling radiator, install a high-definition TV camera, replace a burned-out light and inspect struts attached to a large solar array rotary mechanism.

The Falcon 9 rocket set to launch the SpaceX’s Crew Dragon capsule on a test flight in February briefly ignited its Merlin main engines on pad 39A at NASA’s Kennedy Space Center in Florida on Thursday. The Crew Dragon test flight to the International Space Station is a precursor to the spaceship’s first mission with astronauts later this year.

In this time-lapse video, the Falcon 9 rocket with the Crew Dragon atop rolls to launch pad 39A at the Kennedy Space Center for the first time on January 3. The rocket was then lifted vertical for a series of fit checks and tests.