SpaceX’s Crew Dragon capsule successfully reached outer space at around 2 a.m. EST Saturday morning. Repeated cheers rang out from the crowds at the Kennedy Space Center launch-site as the capsule passed each flight stage.

If the rest of the flight goes well over the next six days, and NASA certifies the capsule is safe, Elon Musk’s rocket company could begin launching astronauts into orbit this summer. That would mark the first time a private company has launched a human into orbit.

S