Project Diana, named for the Roman moon goddess Diana — goddess of the hunt, wild animals and the moon — was an experimental project of the US Army Signal Corps in 1946 to bounce radio signals off the moon and receive the reflected signals. This was the first experiment in radar astronomy and the first attempt to actively probe another celestial body. It was the inspiration for later EME (Earth-Moon-Earth) communication techniques. 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.