Astronomers have found one of the heaviest black holes ever measured, sitting in the heart of a distant galaxy and coming in well above what scientists would normally expect for a galaxy of its size.

A sleeping ultramassive black hole, 36 billion times the Sun’s mass, is warping light 5 billion light-years from Earth.

A team of scientists have said they think they've discovered 'potentially the most massive black hole ever detected' in the universe. The University of Portsmouth's Institute of Cosmology and ...