Quasars. The accretion disks that surround their central engine black holes emit radiation that can outshine the entire galaxy cluster in which they reside. In fact, these disks can produce more light than tens of trillions of our suns combined. The energy output of quasars can even surpass that of entire galaxies merging, and they are more powerful than the peak of a supernova, emitting a continuous stream of energy.
jamx02 t1_j9ju6hc wrote
Reply to What are in your opinion the scariest objects / occurrences in our universe? by SpaceCinema_
Quasars. The accretion disks that surround their central engine black holes emit radiation that can outshine the entire galaxy cluster in which they reside. In fact, these disks can produce more light than tens of trillions of our suns combined. The energy output of quasars can even surpass that of entire galaxies merging, and they are more powerful than the peak of a supernova, emitting a continuous stream of energy.