Dyson Sphere

A Dyson sphere is a hypothetical megastructure originally described by Freeman Dyson. Such a "sphere" would be a system of orbiting solar power satellites meant to completely encompass a star and capture most or all of its energy output. Dyson spheres have also been found to be completely badass. (Everything except that last idiotic sentence was taken directly from en.wikipedia.org/wiki/Dyson Sphere.)