Michael Winston "Mike" Melvill is a world-record-breaking pilot and one of the test pilots for SpaceShipOne, the experimental spaceplane developed by Scaled Composites. Melvill piloted SpaceShipOne on its first flight past the edge of space, flight 15P on June 21, 2004, thus becoming the first commercial astronaut and the 435th person to go into space. He was also the pilot on SpaceShipOne's flight 16P, the first competitive flight in the Ansari X Prize competition.