As an astronaut, Scott made his first flight into space as a pilot of the Gemini 8 mission, along with Neil Armstrong, in March 1966, spending just under eleven hours in low Earth orbit. He would have been the second American astronaut to walk in space had Gemini8 not made an emergency abort. Scott then spent ten days in orbit in March 1969 as Command Module Pilot of Apollo 9, a mission that extensively tested the Apollo spacecraft, along with Commander James McDivitt and Lunar Module Pilot Rusty Schweickart.
After backing up Apollo 12, Scott made his third and final flight into space as commander of the Apollo15 mission, the fourth crewed lunar landing and the first J mission. Scott and James Irwin remained on the Moon for three days. Following their return to Earth, Scott and his crewmates fell from favor with NASA after it was disclosed that they had carried four hundred unauthorized postal covers to the Moon. After serving as director of NASA's Dryden Flight Research Center in California, Scott retired from the agency in 1977. Since then, he has worked on a number of space-related projects and served as a consultant for several films about the space program, including ''Apollo13''.
