Seth Shostak quote

Ever since the Second World War, television signals (as well as FM radio and radar) have served as Homo sapiens' emissaries into deep space. High-frequency, high-power broadcasts have filled an Earth-centered bubble more than 60 light-years in radius with signals.
Seth Shostak

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Confessions of an Alien Hunter: A Scientist's Search for Extraterrestrial Intelligence
Confessions of an Alien Hunter: A Scientist's Search for Extraterrestrial Intelligence
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