Thus, at 11.49 A.M. May 18, 1969, Apollo 10’s crew of John Young, Thomas Stafford, and Eugene Cernan bolted into low-Earth orbit were soon on their way to our little sister in the sky.

While in orbit in 1969, a member of the Apollo 10 crew snapped this series of photographs, which we made into the GIF above, that show Earth rising over the lunar horizon. The Earth is only half ...

Once both modules were known to function, Apollo 10 tested the equipment in the ... Dave Scott, Al Worden and Jim Irwin were the crew of Apollo 15, the first mission to use the four-wheel-drive ...