What are Dyson spheres, the proof of extraterrestrial life that astronomers are looking for?
- Does a Dyson sphere exist?
- Did Scientists Discover Alien Mega-Structures?
It is believed that they could be structures developed by civilizations far from Earth, with which they could harness the energy of their star.
Since the beginning of time, there has always been a
question about whether there is life beyond Earth . Whether we are not alone in
the universe is a question that we are still far from answering . Experts
dedicate part of their lives to trying to find any kind of sign of intelligent
life on another planet , such as on Mars with the presence of the Perseverance
rover .
El Físico Freeman Dyson pronóstico que enormes esferas no humanas tomarían energía del Sol, tal como se observó el 19 de abril en este gran análisis con zoom.
— Jaime Maussan (@jaimemaussan1) April 26, 2022
NASA:https://t.co/ypTaemLkkU pic.twitter.com/mosatNGdXW
But the studies are not focused only on small remains that may appear on the surface of Mars or any other remote planet. Another line of research has to do with the hypothetical development of advanced extraterrestrial structures , which have been called Dyson spheres . This is the main objective of the Hephaistos Project .
La Escala de Kardashev fue propuesta por el astrofísico Nikolái Kardashev como un método para clasificar a las civilizaciones hipotéticas en el universo de acuerdo a su capacidad de obtención de energía. 👽🌌
— Somos Cosmos (@InformaCosmos) February 2, 2023
Créditos: The Golden Record pic.twitter.com/EHZLwoLthN
In order to measure the technological level of a
hypothetical extraterrestrial civilization , astronomer Nikolai Kardashev
proposed a scale in the 1960s. This scale, which bears his name, was
popularized by astronomer and science popularizer Carl Sagan . The different classifications
on it were based on the amount of energy used by a civilization.
According to this expert, and taking the Kardashev scale as
a reference , terrestrial civilization has not reached type I civilization, the
lowest of all and in which they would be able to control and take advantage of
all the energy available on the planet (wind, geothermal and seismic) . As for
the most advanced, they could manipulate and control all the energy of the
solar system and the galaxy. In the most developed type, they could get the
energy from the stars .
According to a group of astronomers, who are part of the
Hephaistos project , it would be possible to observe technological signals from
advanced civilizations . Now, these signals would have to be identified in data
already obtained by different telescopes, such as Gaia . And one of the
structures, as they have published in the Monthly Notices of the Royal
Astronomical Society (MNRAS), would be the Dyson Sphere .
Behind the Dyson spheres
On this scale, for Type II civilizations to be able to
harness all the energy available from a star, they would need to use structures
to capture that energy . These structures could be Dyson spheres, developed by
physicist Freeman Dyson . Built around a star, they would be able to capture
and use its energy.
According to this article, these spheres could emit a
characteristic signal if they existed . If so, they would emit infrared
frequencies and with a radiation different from that of the star they orbit.
And thanks to the analysis of studies by Gaia, DR3, 2MASS and WISE ,
astronomers from Sweden claim that it is possible to find signs of Dyson
spheres, analyzing the position and speed of stars and objects. And, with this,
they assure that seven signals indicate a possible signal from the sphere. In
any case, it is still too early to confirm its existence .
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• Extraterrestrials