Gemini 8 was the first spacecraft to dock with another craft, the Agena, in 1966. The Agena gave astronauts David R. Scott and Neil Armstrong practice docking with other vehicles. These experiments prepared astronauts for lunar missions.
Astronauts David R. Scott and James B. Irwin drove the Lunar Roving Vehicle (LRV) for six hours on the moon in 1971. The two men, plus Command Module Pilot Alfred M. Worden, lifted off aboard Apollo 15 on July 26, 1971. They spent close to three days on the moon and made two more trips aboard the LRV. The LRV could travel at rates between six and eight miles per hour. The crew successfully returned to earth on August 7, 1971. Children could learn more at: Apollo 15.