Supermassive black holes may create conditions akin to "cosmic intersections with failed traffic lights" that make collisions between smaller stellar-mass black holes inevitable.
Astronomers have discovered a quasar that remained hidden for over the years is the brightest ever, powered by the fastest growing black hole ever discovered that eats a sun every day.
Astronomers have discovered the most luminous object ever detected, a quasar 12 billion light-years away that s 500 trillion times more luminous than the sun.
The quasar is more than 500 trillion times brighter than the Sun and the supermassive black hole at its center has a massive appetite, eating equivalent of the mass of the Sun every day.