Watch the Falcon 9 launch from pad 39A

SpaceX’s first Crew Dragon spacecraft to carry astronauts into orbit arrived at launch pad 39A at the Kennedy Space Center in Florida late Friday, May 15, to be attached to its Falcon 9 rocket. The capsule will carry NASA astronauts Doug Hurley and Bob Behnken to the International Space Station.

On its third flight Monday night, SpaceX’s Falcon Heavy rocket will fly to three different orbits with two dozen spacecraft on a mission set to last more than six hours, prompting SpaceX founder Elon Musk to declare it the company’s “most difficult launch ever.”

SpaceX’s Falcon 9 rocket lifted off Wednesday at 10:29 a.m. EDT (1429 GMT), launching with two Boeing-built communications satellites for Eutelsat and Asia Broadcast Satellite.