Sphearworlds: Dyson Sphears:
Ring or shell constructed around a star or black hole. In the ring live people;
the ring is powered by the energy emissions of the star/black hole.
The construction of this habitats are proposed by the 20th century physician
Dyson, but never taken serious.
The Dyson sphere is named for the 20th Century Earth scientist Freeman Dyson; Dyson suggested that civilizations could be classified by the amount of power which they could tap and control. He proposed that eventually a civilization would tap the entire energy output of a star; some suggested that this would best be achieved by orbiting huge numbers of solar collectors, but this idea was quickly replaced by the idea of constructing a large solid sphere around it. This would not only allow all of the suns energy to be tapped if required, but would also potentially allow a colossal living area to be built.
Got it from
The Daystrom Institute