An Unexpected Source Might Be Helping The Universe Glow More Than It Should

Dark matter, conceptual illustration. The image represents a region of space a few hundred megaparsecs across. Dark matter is a form of matter that cannot be detected by telescopes as it emits no radiation. It is thought that cold dark matter first formed after the Big Bang. This matter then collapsed under its own weight to form vast halos (bright yellow) which sucked in normal matter to form visible matter, such as galaxies.

The light of darkness.

from ScienceAlert https://ift.tt/7qwplNd