The distance to the moon is measured using a mirror and laser formation on the moon, as well as a telescope on Earth. Because of the moon's elliptical orbit around the Earth, this distance varies, making it critical that such a facility exists.
The distance to the moon is measured using a mirror and laser formation on the moon, as well as a telescope on Earth. Because of the moon's elliptical orbit around the Earth, this distance varies, making it critical that such a facility exists.