PSO J352.4034–15.3373, or PJ352-15, is a quasar with an astrophysical jet ascribed to a billion-solar-mass supermassive black hole. It is one of the brightest objects so far discovered. Its discovery, using the Chandra X-Ray Observatory, was reported in March 2021. At 12.7 billion light years from Earth, the X-ray jet became an observational distance record at the time of its discovery.[3][4]
