On the latest Watch this Space, NASA Administrator Jim Bridenstine chats with SpaceX CEO and Chief Designer Elon Musk during a tour of Launch Complex 39A just before the Demo-1 launch at the Kennedy Space Center in Florida. The historic Demo-1 mission launched at 2:49 a.m. EDT 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.

Learn more about the Commercial Crew program: https://blogs.nasa.gov/commercialcrew/.