An article published in the journal “Astronomy & Astrophysics” reports a study on hyperluminous galaxies. A team of researchers led by Lingyu Wang of the Netherlands Institute for Space Research, Utrecht, used the LOFAR radio telescope to assess the amount of hyperluminous galaxies in infrared and concluded that it’s ten times higher than what stars can produce according to current models. If the models are correct, it means that in many galaxies there are other light sources such as an active galactic nucleus powered by a supermassive black hole surrounded by large amounts of materials heated to the point of generating electromagnetic emissions.