
quantum physics

Definition
Black holes

Question
Are there multiple universes?

Definition
Dark matter

Physics
Bizarre pentaquark turns out to be a new kind of subatomic 'molecule'
News

Space
We've seen signs of a mirror-image universe that is touching our own
Features

People in Science
Chien-Shiung Wu

Definition
Causality
Physics
Quantum leaps are real – and now we can control them
News
Physics
The secret of dark matter could be a particle the size of a planet
Features
Physics
The kilogram has been transformed as new definition takes hold
Regulars
Physics
Mini universes could be constantly exploding at every point in space
News

