Advanced alien civilizations, if they exist, could meet their planet's energy needs by migrating near miniature black holes and capturing the potentially unlimited energy around them. This is stated in a new study by Harvard astrophysicist Avi Loeb, writes The Independent.
"Such 'companions' of black holes could be a sign of the presence of highly advanced aliens and could be used to search for life outside the solar system," - emphasizes the researcher.
The publication noted that black holes emit photons and large subatomic particles known collectively as Hawking radiation, named after the famous physicist Stephen Hawking, who first theoretically described this process. In particular, in 1974, he suggested that a black hole can glow by itself even without an external source of fuel.
At the same time, a new study shows that a sufficiently technologically advanced alien civilization could create its own "mini" black hole and use it for its energy needs. Therefore, in this system, aliens can use the momentum of a rotating disk of matter around such a black hole to produce energy.
Dr. Loeb also believes that they could load matter into a black hole and use the Hawking radiation that is produced as a result.
“A Harvard scientist calculated that such a black hole, created for this energy purpose, would weigh only 100 tons. It's so small that black holes of this size can evaporate in less than a year and a half if left unchecked, but they can be sustained by throwing small amounts of matter into them." - note in the material.
According to the scientist, in exchange for the matter thrown into it, such a black hole can provide an "infinite source of energy".
“This system of black holes is the most efficient engine I have ever thought of. The fuel is converted to energy with a perfect efficiency of 100 percent, as the mass falling into the black hole eventually escapes as Hawking radiation. The only other method of converting mass into radiation with such efficiency is matter-antimatter annihilation." - explains the Harvard researcher.
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