Apollo 10
Apollo 10 lifts off for a dress rehearsal over the moon. Thomas Stafford, Gene Cernan and John Young fly a complete Apollo stack – both the command/service module and the lunar model – to the moon, conducting practice maneuvers in lunar orbit. Over eight days, the Apollo 10 crew does everything but land on the moon. With the mission requirements fulfilled, NASA announces that the next Apollo mission will attempt an actual landing.
This mission is dramatized in the Spider episode of HBO’s 1998 series From The Earth To The Moon.