Any highly developed civilization sooner or later needs protection from supernovae. Cyclopean “dams” and “dams” around a distant star may betray the presence of neighbors in the Galaxy right now.
Even stars die, and the large ones do it very effectively, with a bright supernova explosion. If it happens not far enough from the inhabited planet, and life on it will not be good. So far, our technical capabilities are far from being able to defend against this unlikely, but very serious threat. However, if everything goes well and the earthly civilization continues to develop, then sooner or later we will certainly take up this task.
Perhaps our descendants will be able to predict the approach of supernova explosions and defend themselves against them by erecting protective structures. Both dams, dams and breakwaters on the sea, and these structures in space will contain powerful streams of high-energy radiation and heavy particles that are ejected by dying stars. “But the exact same logic applies to any other possible civilization in the Galaxy,” argue Milan Cirkovic and Branislav Vukotic of the Astronomical Observatory of Belgrade in an article published by Acta Astronautica. According to Serbian astronomers, these defenses will help find our neighbors.
According to scientists, for this, civilization must reach at least the level of type 1 on the Kardashev scale (it is believed that modern human civilization has reached the level of 0.7). Such creatures will be able to completely utilize all the energy of their star and create a protective barrier around a star approaching death.
Chirkovich and Vukotic further argue that the most affordable way to erect such a defense would be simply to create a cloud of ice blocks that surround the star quite tightly. To drive ice, for example, from the Kuiper belt in the far reaches of the solar system, it can be electrified and then towed in a magnetic field. And if something similar has already been created around one of the distant stars, then we have every chance to see it - the unusual optical properties of the star will give out the tremendous work that is happening near it.
Sergey Vasiliev