Apollo 10 Lunar Module Flight

Date: May 22, 1969 • Location: Washington, United States

Apollo 10's Lunar Module flies within 8.4 nautical miles (16 km) of the Moon's surface.

Apollo 10 was the fourth human spaceflight in the United States' Apollo program and the second to orbit the Moon. NASA, the mission's operator, described it as a "dress rehearsal" for the first Moon landing. It was designated an "F" mission, intended to test all spacecraft components and procedures short of actual descent and landing.