Scientists have figured out why the universe glows.
Many of us have wondered why the stars and even the planets that we see at night glow. On a cloudless night, we see billions of glowing space objects. But what caused this glow was previously unknown. Now scientists have managed to solve this riddle.
Observing the universe through X-ray telescopes, scientists from the University of Chicago (USA) saw that even quasars, neural stars and the cosmos itself emit light. This phenomenon is called the diffuse X-ray background.
The light emitter can also be interstellar gas, which is formed during the explosion of stars and is a kind of cosmic ash.
In the course of observations, scientists managed to find a luminous spot in space with an unidentified source of glow. For a long time, experts could not understand where this glow came from. Now they were able to establish that 70% of the total radiation comes from the plasma of the Universe, which is often also called the plasma of the Local Bubble.