Twenty-seven years ago, a group of physicists made an accidental discovery that flipped mathematics on its head. The physicists were trying to work out the details of string theory when they observed ...

Atomic nuclei are composed of two different types of particle — protons and neutrons —which, if we ignore the charge on the proton, resemble each other so much that they are often treated as a single ...

A comparison of the charge-to-mass ratio for the proton and the antiproton has been performed with record-breaking precision — the best such test yet for a mirror-like symmetry that relates matter and ...

Hello, I'm Mr Firth, and together we're going to learn about lines of symmetry. Symmetry is when one side of a shape looks exactly like the other—just flipped. Lots of buildings use symmetry because ...