According to MIT, a laser beacon has the potential to assist in signaling alien civilizations that are located as far as 20,000 light years away.

Research is going on in almost all the countries of the world to come up with new methods that can be used to find signs of alien life.

MIT has a different concept where they want to keep using current laser technology to build a signal light that would be used to attract any intelligent alien civilizations that may be searching for life in the universe.

Some media speculated that existing laser technology could be used to develop a beacon based on the findings of MIT researchers.

With such brightness, it may be visible from as far as 20 000 light years from Earth. ”This study indicates that by using a 1 to 2-megawatt laser and a 30- to 45-meter telescope, laser can be focused and sent into space. This combination would produce a beam or an interference pattern of IR radiation intensity sufficient enough to contrast the influence of the sun.

That signal may be picked by an alien astronomer engaged in a survey on our region of the Milky Way galaxy especially if the astronomers were in nearby star systems like Proxima Centauri.

MIT researchers said that if an extraterrestrial astronomer is observing the universe from TRAPPIST-1, the closest star to Earth with potentially inhabited worlds, the colossal laser might be utilized for sending a brief message in Morse code signals. In this method, a message would be given a data rate of a few hundred bits per second and could possibly arrive at the distant planet years later. One of the project’s researchers suggested that most of the needed technology is currently in place; the rest may be created in the foreseeable future.

Some of the issues that may be associated with this method include the ability that, although the IR beam is invisible, it may be detrimental to the eyes of people if they were to look directly at it. This beam would have an average power of 800 w/m2 in terms of flux density which is equivalent to the sun power of 1300 w /m2.

It would be on the far side of the moon that is safer than the earth to be taken as a destination destination. Three, experts reveal that any distant astronomer looking at our region of galaxy also has to look straight at the laser to see the beam making it impossible for one to actually detect the beacon.

SOURCE: MIT

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