Who's Sending These Radio Signals From 4,000 Light Years Away?
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Scientists have detected a repeating radio signal originating 4,000 light years away. Astronomer Marc Dantonio discusses the implications of this find, and whether the phenomenon is natural or artificial. Could this be a new sign of contact with another civilization?
Featuring:
Marc Dantonio
Audio Languages:
English
Subtitles:
English
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