Answer by rob for How does a laser from Earth manage to hit the Moon with...
It's been a long time since I read the papers on the lunar laser ranging experiments. (They're great papers!) But one of the surprising issues is that there really isn't much aiming involved, because...
View ArticleHow does a laser from Earth manage to hit the Moon with precision?
A question I've been asked is how a laser, fired from earth, would hit the moon without "leading it" (or hit it with precision). When firing a laser at the moon, it takes about 3 seconds to reach it....
View ArticleAnswer by PM 2Ring for How does a laser from Earth manage to hit the Moon...
As Rob mentions, when reflecting a laser off the Moon you do need to compensate by ~1.4 arc-minutes for the light-time delay. But the whole point of the Lunar Laser Ranging experiments (LLR) is to...
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