An ultra massive black hole around 33 billion times the mass of the Sun has been discovered by astronomers in the UK and is thought to be one of the biggest ever found.
A team of scientists from Durham University described its findings, published in the journal Monthly Notices of the Royal Astronomical Society, as "extremely exciting".
Ultra massive black holes are the most massive objects in the universe, at between 10 billion and 40 billion times the mass of the Sun.
