Particle accelerator reveals the early universe’s mysterious X particles
Our understanding of physics can tell us a lot about the universe as it is, as it was, and as it one day will be. Using telescopes, we’re able to peer into the distant reaches of space, and in so doing, peer back in time. When we do, we find a strange place in the moments after the birth of the universe when the rules of reality seem to have manifested in unusual ways.