An ultra-massive black hole, 36 billion times the Sun’s mass, hides in the Cosmic Horseshoe galaxy 5 billion light-years away, unveiled by a perfect Einstein Ring and precise stellar motion measurements.

The black hole sits five billion light-years from Earth. It lies at the centre of a giant galaxy in the Cosmic Horseshoe system.

It may be the most massive black hole ever found. 36 billion times larger than the mass of our Sun, it was previously hidden from astronomers while existing at the heart of the Cosmic Horseshoe galaxy,