Physicists know that their elegant theoretical description of forces and particles – the Standard Model – must be incomplete, ...

Something invisible holds the universe intact. It outweighs everything you can see—every star, every gas cloud, every ...

A light particle can appear to leave a cloud of atoms before it enters – a new experiment, asking the atoms, confirms the ...

The accelerator complex at CERN is a succession of machines that accelerate particles to increasingly higher energies. Each machine boosts the energy of a beam of particles before ...