2. Institute of Astronomy and Astrophysics, Academia Sinica, P.O Box 23-141, Taipei 10617, Taiwan, R.O.C. $\begingroup$ @DirkBruere - In a .6 ly diameter Dyson sphere, a 6 km dia black hole radiation absorber is simply not going to make a difference. Summoned the worm from there and turned the star inside the dyson sphere into a black hole. $\begingroup$ Building a Dyson sphere is about capturing energy output and using that to power to run the civilisation inhabiting the sphere. 64, pp.58-62, 2011 MAKOTO INOUE1 AND HIROMITSU YOKOO 2 1. Built the dyson sphere around the star. $\endgroup$ – WhatRoughBeast Jul 26 … This also turned all the planets into habitable tomb worlds. Built a habitat over the shielded world, making it a research station and declared that my empire capital. Theoretically you could construct a Dyson sphere around a black hole, but what would be the point? There is an alternative construction called a kugelblitz, which is a set of black holes in a stable configuration. The energy doesn't have to be visible radiation - it can be anything output by the enclosed object.. TYPE III DYSON SPHERE OF HIGHLY ADVANCED CIVILISATIONS AROUND A SUPER MASSIVE BLACK HOLE JBIS, Vol. Chiba University of Commerce, 1-3-1 Konodai, Ichikawa-shi, Chiba, 272-8512, Japan. It could be possible to surround a black hole with a Dyson Sphere, like a star.