On This Day In Space: Nov. 16, 1974: Arecibo Observatory broadcasts interstellar message
On Nov. 16, 1974, humans sent their first message to the stars in an attempt to contact extraterrestrials. See how it happened in our On This Day In Space series.
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On Nov. 16, 1974, humans sent their first message to the stars in an attempt to contact extraterrestrials. See how it happened in our On This Day In Space series.
