![]() ![]() The findings suggest that if a high-powered 1- to 2-megawatt laser were focused through a massive 30- to 45-meter (98- to 148-foot) telescope and aimed out into space, the combination would produce a beam of infrared radiation strong enough to stand out from the sun’s energy. The research, which author James Clark calls a “feasibility study,” appears today in The Astrophysical Journal. If extraterrestrial intelligence exists somewhere in our galaxy, a new MIT study proposes that laser technology on Earth could, in principle, be fashioned into something of a planetary porch light - a beacon strong enough to attract attention from as far as 20,000 light-years away. An MIT study proposes that laser technology on Earth could emit a beacon strong enough to attract attention from as far as 20,000 light-years away.
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