Ninth manned mission in the Apollo program. Fourth mission to land on the moon.
- Launched: July 26, 1971
- Returned: August 7, 1971
- Crew members: David Scott, commander; Alfred Worden, command module pilot; James Irwin, lunar module pilot.
- Command module: Endeavor
- Lunar module: Falcon
- Landed: July 30, 1971
- Lunar landing site: 26.1 N, 3.6 E -- Hadley-Apennine
- On surface: 2 days 18.9 hours
- Lunar EVA: 19.1 hours (0.5 + 6.6 + 7.2 + 4.8)
- Samples: 76.8 kg
The first of the J-class missions, featuring the Lunar Rover.