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4 Times in History When We Tried Sending Radio Messages To Aliens

The history and science of making calls to E.T.

Many people are familiar with the efforts that scientists have made for SETI, the Search for Extraterrestrial Intelligence. SETI is primarily about passively eavesdropping to find artificial radio signals from technologically advanced alien civilizations. Communication…



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Jimmy Ng, Ph. D

I write about science, technology, and science fiction; 3x top writer (science, space, future); semiconductor engineer by day