What Does APOLLO Stand For?

APOLLO stands for Apache Point Observatory Lunar Laser Ranging Operation

APOLLO, or Apache Point Observatory Lunar Laser Ranging Operation, is a scientific initiative focused on measuring the distance from Earth to the Moon with high precision. Utilizing advanced laser technology at the Apache Point Observatory in New Mexico, APOLLO sends laser beams to retro-reflectors left on the lunar surface by the Apollo missions. The data collected helps improve our understanding of lunar dynamics, Earth-Moon interactions, and contributes to fundamental physics research, including tests of general relativity.