AI-powered
podcast player
Listen to all your favourite podcasts with AI-powered features
What's the Most Convincing Evidence for the Existence of Dark Matter?
Up until then the universe was a very hot dense place and everything was broken down into nuclei which are positively charged and electrons which are separate. At that point we've got this thick, gloopy mess of particles that are scattering off of each other all the time. However at that point then the universe is cooled down enough the energy has dropped so the atoms can form. Why did it cool down? It's basically coming as the universe expands from the big bang, the temperature drops. We are trying to find out about this.