Overview
The flight that did everything except land on the Moon. Apollo 10 was a full-on dress rehearsal of Apollo 11. This mission would do everything except touch down on the lunar surface. The flight marked the first undocking and redocking of a spacecraft in orbit of a space body other than Earth and achieved the fastest speed to date for a human mission of 39,897 km/h. During the non-landing descent toward the Moon, Stafford and Cernan came within 15 km of the lunar surface. Apollo 10 was a total success. The stage was now set. Apollo 11 would attempt to land humans on the Moon.