"This is a structure we've never seen before, so it could be a new class of dark object."

Astronomers baffled by 'mysterious disruptor' with a mass of 1 million suns and a black hole for a heart

Source: space
Source Link: https://www.space.com/astronomy/black-holes/astronomers-baffled-by-mysterious-disruptor-with-a-mass-of-1-million-suns-and-a-black-hole-for-a-heart