Five favourite problems inspired by Leonhard Euler, one of the greatest mathematicians of all time.

Current physical theories suggest that beautiful symmetries underly the fundamental particles and forces of nature. We describe those symmetries using an analogy from economics, and even rediscover the famous Higgs boson.

Do we live in a matrix? What does physics tell us about reality? Are reality and information one and the same? Do things only exist if they are perceived? Find out some the answers to these fascinating questions.

Schrödinger's cat has come to symbolise everything that is strange about the famously strange theory of quantum mechanics. Here's an accessible introduction to one of the weirdest, yet most successful, physical theories we have.

How can it be that our wonderfully complex world is governed by a few comparatively simple laws of nature? Find out with this collection of articles and videos.

Science is the study of events: things that happen in the world around us. But what exactly is an event? The answer is harder than you might think.

It's impossible not to be fascinated by black holes. Find out all you'd like to know about them with these articles, videos and podcasts.

Does reality arise from information? What does this even mean? We explore the impact of John Wheeler's revolutionary ideas.