SpaceX Demo-1 Preflight (NHQ201903010021)

A SpaceX Falcon 9 rocket with the company's Crew Dragon spacecraft onboard is seen at sunset on the launch pad at Launch Complex 39A as preparations continue for the Demo-1 mission, Friday, March 1, 2019 at the Kennedy Space Center in Florida.

The Demo-1 mission launched at 2:49am ET on Saturday, March 2 and was the first launch of a commercially built and operated American spacecraft and space system designed for humans as part of NASA's Commercial Crew Program.

The mission will serve as an end-to-end test of the system's capabilities. Photo Credit: (NASA/Joel Kowsky)