That's a Dyson sphere,

Dyson spheres are like huge structures made up of tless sor sails,

A Dyson sphere will pletely enclose a

is able to exploit the energy in its star system,

However, the teological level needs to be suffitly developed,

This also means,

For example, you arbitrarily travel between the Milky Way gaxy with a diameter of about 100,000 light-years,

There is a good measure of,

One possible way to harness stelr energy is the Dyson sphere,

Harvest almost all the energy of stars with high-tech level,

the transparent wooden rimless smart gsses,

sed-level civilization,

Civilizations that reach this level should be able to travel easily between stars,

And for the sed-level stelr civilization,

For example, the eeology,

It's a huge building that encloses almost the entire star,

including the energy of other ps, and even stars,

for the use of civilization itself,

Say slowly:

If a ic civilization successfully trol the Dyson sphere,

Then it be said that it is already a stelr civilization,

The sed level is the stelr civilization,

Eveire civilizations live in a Dyson sphere,

The Dyson sphere is simply,

Dyson spheres are theoretically possible,

even developed a way to travel faster than the speed of light,

In theory,

utilize the full energy of the star system in which it is trolled,