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PBS Space Time
We’ve Been Looking for Aliens for 70 Years. We've Been Doing It Wrong All Along
Season 11
Episode 29
We’ve been looking for messages from the stars ever since Frank Drake pointed the Green Bank radio telescope at Tau Ceti and Epsilon Eridany 65 years ago. He saw nothing that couldn’t be explained by natural causes. Nor have the much more extensive SETI surveys conducted since. So, maybe there are no alien signals to see. Or maybe we need to update how we search for them.
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