Much has been speculated about the existence of extraterrestrial beings. At the end of last month, for example, a French scientist published an article in which he claimed that aliens not only exist, but that they are evil. An American astrophysicist, on the other hand, is not sure, but he guarantees that he knows exactly where they live, if they are right.
In a study published in the arxiv prepress service and already accepted by the scientific journal Royal Astronomical Society monthly announcementsBen Zuckerman, professor emeritus of physics and astronomy at the University of California, Los Angeles, says they could live in Dyson spheres, around the shells of sun-like stars, called white dwarfs, scattered across Lane.
“This is where we should focus our search for aliens,” Zuckerman said in an interview with the website. living science. According to him, based on his research, astronomers can estimate how many extraterrestrial civilizations live in the galaxy.
There is no intelligent life without energy
The author is based on the following principle: every advanced civilization needs energy, whether it is for food, transportation, comfort or convenience.
Currently, nearly 7.8 billion people on Earth use about 160,000 watt-hours of energy each year, much of it generated by fossil fuels, which are extremely harmful to the planet’s atmosphere. The mastery of advanced technologies can allow us to favor renewable energy, such as wind power (from the wind) and solar energy (from the sun).
And that is the motivation behind Dyson Spheres, proposed by the famous physicist Freeman Dyson, who developed the idea in 1960. If an advanced civilization is serious about harnessing the incredible energy production of its host star, its individuals must build megastructures to capture it and block it out. at least some of the starlight and convert it into energy for her activities.
However, it does not matter how advanced a civilization is, or how many Dyson Spheres its members can build if they do not know exactly which stars to build their structures on.
A star like the Sun, for example, will one day turn into a red giant (an advanced stage of star life) and eventually explode, giving rise to a dense and extremely hot star called a white dwarf. This process, in turn, will overheat the inner planets of your solar system, and when the white dwarf cools, it will freeze the outer planets.