Called a laser ranging retroreflector, it helps measure the distance between the Earth and the moon. The crews of Apollo 14 and Apollo 15 also deployed similar equipment. The reflector is still ...

Early Apollo Missions: Earth Orbit Apollo missions flew unmanned ... Dave Scott, Al Worden and Jim Irwin were the crew of Apollo 15, the first mission to use the four-wheel-drive lunar rover.

They brought back to earth 96 pounds of rock ... Announcer: So after missing a moon landing in 1970, the Apollo 14 and 15 moon missions of 1971 put the United States that much closer to the ...

December 15-16: Wally Schirra and Thomas Stafford ... (the only astronaut to command Mercury, Gemini and Apollo missions) enters earth orbit in the first test of the spacecraft.