Fiction:Lapida Galaxy/Core

Lapida Galaxy's Core is a super-massive ringularity located in the center of the Lapida Galaxy. It is unique among ringularities in that it is physically wide enough in proportion to its mass that its event horizon is donut-shaped, with a hole right through the middle where light and matter can pass through.

For reasons not currently known, the rotation of the core generates an energy called Mystys, which is then flung out into the rest of the galaxy.