What are Quasars?

Quasars are the farthest objects that we can see in the universe through our telescopes.

 A quasar is a supermassive black hole which consumes a lot of matter from space and gives out large bursts of energy. A quasar is very active and perhaps the most violent objects of our universe. 

It is thought that As mentioned earlier quasars are the farthest objects we can see through our telescopes because after a few hours of big bang the universe was nothing but a dense cloud of hydrogen and helium and when large portions of that cloud collapsed due to gravity large stars were formed and the larger the star faster does it burns up its fuel causing the star to form a black hole and as the mass of the black hole is very high the black hole becomes a quasar. Now, you may be thinking that why we are not able to see the large stars? The reason behind it is that when the large stars were formed the universe was just a gas cloud. As a result, the light from the stars was not able to go out if the cloud and we are not able to see them. But by the time these stars run out of fuel the universe was old enough to form many stars and as a result, the hydrogen cloud becomes very thin and in some places, it disappears and we can see the large black hole or quasars.

The biggest known quasar eats almost 2.7 times the mass of our sun.