ieve one of the artifacts left at the landing site was a laser reflector. there is a man somewhere quieting going into his lab every day and measureing the distane to this reflector with his laser ranging telescope. He has been at it for 40 years, like I guess you cant prove it was actually handled by the astronauts, but there must be other things in the area that would reflect the signal, so lidar mapping?? Ok who is going to pay?