Megawatt Infrared Laser Beacons for Interstellar Signaling: Feasible with Large Telescopes and Detectable Up to 20,000 Light-Years

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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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Megawatt laser beacon could communicate with aliens – Physics World
physicsworld.com

Megawatt laser beacon could communicate with aliens – Physics World

Signals could be sent as far as 20,000 light-years away