Before moving ahead with the news, it is important to know what a quasar is. Quasars are a subclass of active galactic nuclei (AGNs). These are very bright galactic cores where such light emerges as gas and dust collapse into a black hole.
Talking about gravitational lensing, it occurs when light coming from a distant object like a quasar passes through space-time. During this the light turns all around and a ring-like shape is visible.
The quasar RX J1131-1231 is a supermassive black hole at the center of a young galaxy. It emits powerful energy while consuming a lot of matter. The lens of an unnamed galaxy is acting as a gravitational lens for the light of this quasar. It appears as a blue point in the middle of this ring.
Due to lensing the brightness of the quasar is greater. There is also repetition. Because of this, four bright spots are visible. The European Space Agency says that these bright spots are mirror images of a bright spot formed due to lensing in the impact.
Images like the Einstein Ring are important for scientists’ research. The Einstein Ring gives us a glimpse of what there is in the distant universe and what it could be like. The concept of gravitational lensing was first predicted by Albert Einstein.