A pair of MIT researchers has proposed a radical method for making our presence known in the universe.
In a new feasibility study, the team says it could be possible to use laser technology as a beacon to attract the attention of alien astronomers, much like a planetary-scale porch light.
Using a laser focused through a huge telescope, the researchers say this ‘porch light’ could be seen from as far as 20,000 light-years away.
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