All About Trivia

Saturday, June 07, 2008

What is the Longest Laser Ranging Experiment in the World?


The McDonald Laser Ranging Station, near Fort Davis, Texas, USA, uses a laser to measure the distance between the Earth and the Moon to an accuracy of 1 cm (0.39 inches). It bounces a laser off reflective targets left on the lunar surface by three manned US Apollo missions and two unmanned Soviet Lunokhod missions.

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