If We Heard from Aliens, What Would It Look Like?

By : Seeker - 5 months ago
Earth can be a really loud place if you’re searching for an extraterrestrial signal. So how does SETI sift through all the cosmic noise to hunt for alien signals?

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“Finding extraterrestrial intelligence ought to be easy. Simply point a sensitive radio detector at the sky, and look for narrow-band signals. Unfortunately, it’s not that easy. Radio frequencies are full of artificial signals generated by humans, many of which look very similar to the kinds of signals SETI experiments are trying to detect.”

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