Telemetry Data: NASA tracked every second of Apollo missions. Even the Soviet Union — America’s Cold War rival — tracked the mission and never disputed the landing.

Moon Rocks: 382 kg of lunar material was brought back and shared with researchers worldwide — confirmed to be non-Earth origin.

Retroreflectors: Apollo 11, 14, and 15 left mirrors on the Moon. You can bounce lasers off them even today from Earth-based observatories.

Independent Tracking: Countries like Australia (Parkes Observatory) and even amateur astronomers tracked Apollo in real time.

Photos from orbit: NASA’s Lunar Reconnaissance Orbiter (LRO) has taken pictures of the Apollo landing sites showing footpaths and rover tracks.