Cmndr Walker, Cptn. Anderson and Lt. Col. Grey are assigned to a secret mission to the moon. Walker and Anderson land, while Grey stays in orbit. As they collect samples, they find footprints..

His Apollo 18 crew of Vance Brand and Deke Slayton docked with Russia’s Soyuz 19, manned by cosmonauts Alexei Leonov and Valeri Kubasov. It was the first joint mission between old Cold War foes.

During the eight-day mission beginning on May 18, 1969, Tom Stafford ... Dave Scott, Al Worden and Jim Irwin were the crew of Apollo 15, the first mission to use the four-wheel-drive lunar ...