Apollo 15
- NASA Human Spaceflight
Apollo 15 was the ninth crewed mission in NASA's Apollo program and the fourth to land on the Moon. This mission marked a significant advancement in lunar exploration with extended surface activities and the introduction of the Lunar Roving Vehicle (LRV). Apollo 15 was launched from Kennedy Space Center on a Saturn V rocket, marking the beginning of a mission designed to perform extensive scientific investigations on the Moon's surface. The mission was headed by David Scott as commander joined by Alfred M Worden as command module pilot, and James B Irwin as lunar module pilot.
Apollo 15 was the first mission to use the Lunar Roving Vehicle, which allowed Scott and Irwin to travel farther from the Lunar Module and explore a wider area. They covered about 27.9 kilometers (17.3 miles) on the lunar surface. They deployed the Apollo Lunar Surface Experiments Package (ALSEP), which included instruments to measure seismic activity, heat flow, and other scientific data.