English: SpaceX CEO and Chief Designer Elon Musk, left, NASA Associate Administrator for the Human Exploration and Operations Mission Directorate William Gerstenmaier, second from left, NASA International Space Station Program Manager Kirk Shireman, second from right, and SpaceX Director of Crew Mission Management Benji Reed, right, watch the progress of the Crew Dragon spacecraft after launch from firing room four of the Launch Control Center, Saturday, March 2, 2019 at the Kennedy Space Center in Florida. The Demo-1 mission will be 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)