Merging black holes and neutron stars have unusual oval orbits prior to colliding and merging, which challenge the laws of physics.

How do the biggest black holes in the universe form? Ripples in spacetime provide a clue

Source: space
Source Link: https://www.space.com/astronomy/black-holes/how-do-the-biggest-black-holes-in-the-universe-form-ripples-in-spacetime-provide-a-clue