Yes. It's been years since I read the details but they can be tracked down. A retroreflector has mirrors arranged in a cube corner shape so they bounce any focused beam right back to the location of the source. This reflection is many many times stronger than a simple single surface reflector and highly localized. So this means that anyone with a telescope and a laser could in theory aim at the moon landing site and instantly (well speed of light delay) see a reflection from there and only there. A merely shiny rock wouldn't work the same way.

Furthermore, the nature of the way the rr works is that no matter where in the moon's orbit the moon is and no matter what the angle is, as long as you can see the moon, the rr will bounce the laser back to you; a flat mirror or a shiny rock wouldn't, it would have to be at exactly the right angle (180 degrees to you) to work that way. So anyone at the equator or the north pole or China could do this test as long as the moon was in their sky at the time.

Here's an article that talks about all the tests: https://www.nytimes.com/2020/08/15/science/moon-lasers-dust.html

Yes. It's been years since I read the details but they can be tracked down. A retroreflector has mirrors arranged in a cube corner shape so they bounce any focused beam right back to the location of the source. This reflection is many many times stronger than a simple single surface reflector and highly localized. So this means that anyone with a telescope and a laser could in theory aim at the moon landing site and instantly (well speed of light delay) see a reflection from there and only there. A merely shiny rock wouldn't work the same way.

Furthermore, the nature of the way the rr works is that no matter where in the moon's orbit the moon is and no matter what the angle is, as long as you can see the moon, the rr will bounce the laser back to you; a flat mirror or a shiny rock wouldn't, it would have to be at exactly the right angle (180 degrees to you) to work that way. So anyone at the equator or the north pole or China could do this test as long as the moon was in their sky at the time.

Yes. It's been years since I read the details but they can be tracked down. A retroreflector has mirrors arranged in a cube corner shape so they bounce any focused beam right back to the location of the source. This reflection is many many times stronger than a simple single surface reflector and highly localized. So this means that anyone with a telescope and a laser could in theory aim at the moon landing site and instantly (well speed of light delay) see a reflection from there and only there.

Furthermore, the nature of the way the rr works is that no matter where in the moon's orbit the moon is and no matter what the angle is, as long as you can see the moon, the rr will bounce the laser back to you; a flat mirror wouldn't, it would have to be at exactly the right angle (180 degrees to you) to work that way. So anyone at the equator or the north pole or China could do this test as long as the moon was in their sky at the time.

Yes. It's been years since I read the details but they can be tracked down. A retroreflector has mirrors arranged in a cube corner shape so they bounce any focused beam right back to the location of the source. This reflection is many many times stronger than a simple single surface reflector and highly localized. So this means that anyone with a telescope and a laser could in theory aim at the moon landing site and instantly (well speed of light delay) see a reflection from there and only there.

Furthermore, the nature of the way the rr works is that no matter where in the moon's orbit it is and no matter what the angle is, the rr will bounce the laser back to you; a flat mirror wouldn't, it would have to be at exactly the right angle (180 degrees to you) to work that way. So anyone at the equator or the north pole or China could do this test as long as the moon was in their sky at the time.

Yes. It's been years since I read the details but they can be tracked down. A retroreflector has mirrors arranged in a cube corner shape so they bounce any focused beam right back to the location of the source. This reflection is many many times stronger than a simple single surface reflector and highly localized. So this means that anyone with a telescope and a laser could in theory aim at the moon landing site and instantly (well speed of light delay) see a reflection from there and only there.

Furthermore, the nature of the way the rr works is that no matter where in the moon's orbit it is and no matter what the angle is, the rr will bounce the laser back to you; a flat mirror wouldn't, it would have to be at exactly the right angle (180 degrees to you) to work that way.

Yes. It's been years since I read the details but they can be tracked down. A retroreflector has mirrors arranged in a cube corner shape so they bounce any focused beam right back to the location of the source. This reflection is many many times stronger than a simple single surface reflector and highly localized. So this means that anyone with a telescope and a laser could in theory aim at the moon landing site and instantly (well speed of light delay) see a reflection from there and only there.