In 1977, scientists detected a mysterious 72-second radio signal from space that remains unexplained to this day, representing one of the most enduring unsolved mysteries in astronomy and the search for extraterrestrial intelligence.
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Mysterious Signal From Space | Tweet DubAdded:
In 1977, we received a radio signal from space that lasted 72 seconds and to this day we still don't know where it came from.
>> Yes, we do. It came from space.
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