Originally Posted by TeasersVOD

For those of you who think the moon landing was faked ...

... our astronauts put mirrors on the moon which astronomers on Earth use to bounce lasers off of to accurately measure the distance from the Earth to the moon. Those mirrors that were placed on the moon by our astronauts are the reason astronomers know that the moon is slowly drifting away from the Earth at the rate of about 1-1/2 inches per year.

The mirrors left by the Apollo 11 mission are still in use today by astronomers.