What is a quasar?
A)a starlike object that actually represents a bright patch of gas in the Milky Way
B)a very large galaxy thought to be formed by the merger of several smaller galaxies,typically found in the center of a galaxy cluster
C)a specialized astronomical instrument for observing distant stars
D)the extremely bright center of a distant galaxy,thought to be powered by a supermassive black hole
E)another name for very bright stars of spectral type O

Question

Quizplus · Accepted Answer

A quasar is the extremely bright center of a distant galaxy, thought to be powered by a supermassive black hole. It emits huge amounts of energy, including visible light and radio waves, making it one of the brightest objects in the universe.

What Is a Quasar