What did Apollo 15 discover?

Apollo 15, launched in July 1971, made significant discoveries on the Moon, particularly in the Hadley-Apennine region. It was the first mission to use the Lunar Roving Vehicle, allowing astronauts to explore a wider area. Key findings included the identification of varied lunar geological features, such as ancient volcanic activity and the presence of breccia formed from impact events. The mission also collected over 170 pounds of lunar samples, providing valuable insights into the Moon's history and composition.