In theory this is cool.
I am confused about any practical applications
In 1969, during the first Moon landing, one of the first instruments deployed was a permanent laser device pointed at Earth.
From memory, it improved measurements of the distance between Earth and Moon down to plus or minus 12 inches.
Is it possible that device is still working after more than 50 years?
I understand the Moon is moving away from the Earth at about a foot a year.
Somebody ought to lasso it before it gets away.