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Earth to aliens: Can other civilizations detect us? - Enid News & Eagle

As radio signals travel farther into space, they become significantly less powerful. Could aliens floating around in the Solar System pick up our radio signals? Sure. What about extraterrestrials living around the closest star to Earth, Proxima ...

Submitted in section: Paranormal news 2015: Earth to aliens: Can other civilizations detect us? - Enid News & Eagle