Megawatt Infrared Laser Beacons for Interstellar Signaling: Feasible with Large Telescopes and Detectable Up to 20,000 Light-Years
To the point
MIT researchers James Clark and Kerri Cahoy propose a megawatt infrared laser beacon sent with large telescopes that could announce humanity to intelligent civilizations and transmit hundreds of bits per second over distances up to 20,000 light-years.
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