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The first transmitted message from space to Earth was:
"This is the President of the United States speaking. Through the marvels of scientific advance, my voice is coming to you from a satellite circling in outer space. My message is a simple one: Through this unique means I convey to you and to all mankind, America's wish for peace on Earth and goodwill toward men everywhere."
The broadcast signal for Eisenhower's greeting was fairly weak, and only very sensitive radio receivers were able to detect it. Most Americans heard the message as it was rebroadcast on commercial news programs.