Quasar Mystery Solved After 60 Years by Astronomers.

Scientists have discovered that quasars, the brightest and most powerful objects in the universe, are ignited by galaxies colliding. The collisions drive gas towards the black hole at the galaxy center, which releases extraordinary amounts of energy in the form of radiation, resulting in the characteristic quasar brilliance. Quasars are important to astrophysicists because they act as beacons to the earliest epochs in the history of the universe. The study has provided a significant step forward in our understanding of how these powerful objects are triggered and fueled.