Thousands of comparatively small black holes may be circling the supermassive black holes that lurk on the centres of galaxies. The concept wouldn’t solely assist clarify how small black holes grow bigger, it could additionally give us a new understanding of why supermassive black holes seem so shiny.
The centres of galaxies are terribly dense, so matter – together with comparatively small, or stellar-mass, black holes – tends to accumulate there. Some of…