Hey, Let's Red Dot the Moon

May 9, 1962: A group of MIT scientists send out 13 red flashes from a laboratory near Lexington. MA and seconds later the laser beam bounces off the moon 250,000 miles away. Although most of the light diffuses into a two-mile circle on the lunar surface, enough returns to register on a sensitive photocell back on Earth. See a Time magazine story on the lunar laser event.