Pat Forrester, chief, Astronaut Office, Johnson Space Center, speaks to members of the media during a prelaunch news conference with NASA, SpaceX and the 45th Weather Squadron leaders Thursday, Feb. 28, prior to the Saturday, March 2 launch of the SpaceX Demo-1 Commercial Crew Program (CCP) mission to the International Space Station. The inaugural flight of the SpaceX Crew Dragon, known as Demo-1, is scheduled to lift off from Kennedy’s Launch Complex 39A Saturday at 2:49 EST. A SpaceX Falcon 9 rocket will launch the uncrewed spacecraft on a mission designed to validate end-to-end systems and capabilities, leading to certification to fly crew. NASA has worked with SpaceX and Boeing in developing the Commercial Crew Program spacecraft to facilitate new human spaceflight systems launching from U.S. soil with the goal of safe, reliable and cost-effective access to low-Earth orbit destinations, such as the International Space Station.