Project Diana, named for the Roman moon goddess Diana - goddess of the hunt, wild animals and the moon - was a project of the US Army Signal Corps to bounce radio signals off the moon and receive the reflected signals. Today called EME (Earth-Moon-Earth), this was the first attempt to "touch" another celestial body. The first successful echo detection came on 10 January 1946 at 11:58am local time by John H. DeWitt and his chief scientist E. King Stodola. Read more