Question

Can a quasar die?

Answer 1

Yes, a quasar will shut down when it runs out of material.

Explanation:

A quasar is the result of material falling in to the accretion disc of a supermassive black hole at the centre of a galaxy. The accretion disc is matter swirling into the black hokle. Material falling into the accretion disc gets heated by gravitational forces and friction until it emits a lot of energy.

When the material falling into the accretion disc runs out, the quasar will be stop emitting. It is possible for a quasar to reignite if more material becomes available.