The Big Bang and the Big Bang Simulations

These days we live in something that is often called the age of precision cosmology. We have an enormous body of data to draw on, and it tells a remarkable story. So like Dan said, these simulations show that not only is there lots of dark matter in the universe, but that dark matter is probably in the category of cold dark matter. And since all of these pieces of evidence, our observations have only gotten more precise and more accurate and they still show the same thing.