In the present epoch, many galaxies have exhausted their gas, and the expansion of the universe means that mergers are infrequent. That is not to say that quasars do not exist in the present epoch, just that their spatial density is so low that we do not have one in our close vicinity.
Considering this, what is the most powerful object in the universe?
That's about the same amount of energy in 10 trillion trillion billion megaton bombs! These explosions generate beams of high-energy radiation, called gamma-ray bursts (GRBs), which are considered by astronomers to be the most powerful thing in the universe.
Subsequently, question is, how fast does a quasar spin?
NASA's Chandra X-ray Observatory and the Hubble Space Telescope combine images of a distant quasar powered by a fast-spinning supermassive black hole. For the first time, astronomers have directly measured how fast a black hole spins, clocking its rotation at nearly half the speed of light.
How is a quasar formed?
A quasar is formed when a super massive black hole at the centre of a galaxy has enough material around it to fall into the accretion disc to generate the energy to power it. The only galaxies with enough material to create a quasar are young galaxies and colliding galaxies.
What is the brightest thing in the universe?
Although quasars appear faint when viewed from Earth, they are visible from extreme distances, being the most luminous objects in the known universe. The brightest quasar in the sky is 3C 273 in the constellation of Virgo.