Astronauts brought back hundreds of kilograms of Moon rocks.

One of the strongest pieces of evidence is the collection of Moon rocks and soil brought back by the Apollo missions. Astronauts gathered 382 kilograms (about 842 pounds) of these samples. These aren't just any rocks; they have a unique chemical makeup, different from any rocks found on Earth. Scientists around the world have studied these rocks for decades, confirming their origin from the Moon. These samples provided vital information about the Moon's age, how it formed, and its history. Their unique features, like tiny glass beads formed from meteorite impacts and a complete lack of water erosion, are impossible to fake with Earth rocks. They are a tangible link to our lunar neighbor, held and examined by countless experts.