This Day in History May 9, 1962

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I had no idea this happened and so long ago.  On this date in 1962, a laser beam was successfully bounced off the moon for the first time.  This was the first lunar laser ranging experiment.  This was helpful in the measurment of the moon.

For more info:
http://famousdaily.com/history/laser-beam-first-bounced-off-moon.html
http://bruceandsallywitt.wordpress.com/2012/05/09/today-in-science-history/