One possible way to harness stellar energy is the Dyson sphere,
Dyson spheres are theoretically possible,
The second level is the stellar civilization,
It' s a huge building that encloses almost the entire star,
na looked at the transparent wooden rimless smart glasses,
including the energy of other planets, and even stars,
For example, you can arbitrarily travel between the Milky Way galaxy with a diameter of about 100,000 light-years,
Harvest almost all the energy of stars with high-tech level,
If a cosmic civilization can successfully control the Dyson sphere,
That' s a Dyson sphere,
And for the second-level stellar civilization,
for the use of civilization itself,
Dyson spheres are like huge structures made up of countless solar sails,
A Dyson sphere will completely enclose
There is a good measure of,
Say slowly:
The Dyson sphere is simply,
In theory,
Civilizations that reach this level should be able to travel easily between stars,
For example, the warp engine technology,
second-level civilization,
even developed a way to travel faster than the speed of light,
Even entire civilizations can live in a Dyson sphere,
However, the technological level needs to be sufficiently developed,
is able to exploit the energy in its star system,
Then it can be said that it is already a stellar civilization,
This also means,
can utilize the full energy of the star system in which it is controlled,