In case some of you don't know about the Arecibo message, it was a radio message that was beamed into space at a ceremony to mark the remodeling of the Arecibo radio telescope in 1974. Dr. Frank Drake, then at Cornell University and creator of the famous Drake equation, wrote the message, with help from the late Carl Sagan, among others. Here is a picture of the Arecibo Message sent from man to the aliens.It was thought that it would take more than 25,000 years for anyone to respond to the message. But the "Arecibo Reply" was found in the form of a crop circle in England.