Theory Nexus

Dark matter is one of the greatest mysteries in cosmology. For almost a century now, scientists have been trying to understand the nature of this invisible and elusive substance that is believed to make up around 85% of the matter in the universe. Despite countless observations and experiments, we still do not know what dark matter is made of, how it interacts with other matter, or how it was formed. However, recent progress in observational and theoretical studies has given us new insights into this enigmatic and fascinating topic. In this article, we will explore the mysteries of dark matter theories and take a journey into the unknown. Discovery and Evidence of Dark Matter Dark matter was first proposed in 1933 by Swiss astronomer Fritz Zwicky, who noticed that the amount of matter needed to explain the gravitational forces in galaxy clusters was much higher than what was observed with telescopes. He hypothesized that there was invisible matter in the universe that was not emitting...