A new search for extraterrestrial life aims to find out by listening for radio pulses from the center of our galaxy. Narrow-frequency pulses are naturally emitted by stars called pulsars, but they’re also used deliberately by humans in technology such as radar. Because these pulses stand out against the background radio noise of space, they’re an effective way of communicating across long distances — and an appealing target to listen for when searching for alien civilizations. The itinerary for the 21st century is to find evidence for technosignatures, biosignatures, and perhaps alien artifacts from space. Tonight on Ground Zero, Clyde Lewis talks with astronomy journalist, Dr. Sky about FIRST CONTACT – OVERLOOKED OR UNDERPLAYED. #GroundZero #ClydeLewis #Aliens #Space
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