We can never 100% prove that the constants really are constant. There is a set of very special numbers, known as the fundamental constants of nature, that cannot be explained. Where do they come from?

The universe exists because matter and antimatter are not good friends. Is there a scientific reason why the universe exists?

This is an extract from Our Human Story, our newsletter about the revolution in archaeology. Sign up to receive it in your inbox every month. Humans come from Africa. This wasn’t always obvious, but ...