Talking to Extraterrestrials

For over fifty years, astronomers have pointed their telescopes to the sky, looking for signals from advanced civilizations—a project called SETI, the search for extraterrestrial civilizations. So far, they’ve found nothing. But what if there *are* other civilizations out there, but they’re doing exactly what we are doing—simply listening, and not transmitting? 

Douglas advocates for a new approach to making contact called Active SETI. Instead of simply listening for signals from extraterrestrials, we send powerful, intentional, radio signals to other star systems, in the hope of receiving a reply.