There's actually been several mirrors left on the surface of the moon that physicists and other scientists have been able to shoot with high powered lasers.
What's neat about the experiment is that labs all over the world can participate. There's been dozens of independently published papers on the moon mirror and the result impact on relativity and our understanding of lunar orbit.
There's actually been several mirrors left on the surface of the moon that physicists and other scientists have been able to shoot with high powered lasers.
https://www.space.com/apollo-retroreflector-experiment-still-going-50-years-later.html
What's neat about the experiment is that labs all over the world can participate. There's been dozens of independently published papers on the moon mirror and the result impact on relativity and our understanding of lunar orbit.
Yep, there's one or two mirrors on Russian craft, yes.