RT @NASAhistory: #Today in 1946, the U.S. Army Signal Corps bounces signals of the Moon in Project Diana campevans.org https://t.co/YiZSSunpiO
RT @NASAhistory: #Today in 1946, the U.S. Army Signal Corps bounces signals of the Moon in Project Diana campevans.org https://t.co/YiZSSunpiO