At the end of a lecture on astronomy, describing how the planets orbit the Sun, a little old lady at the back of the room stood up and said: "What you've told us is all rubbish. The world is really a ...

Dark matter is special in that it doesn't emit, absorb or interact with light, so science had to find a more creative way to ...

We can't see dark matter directly, so studying it pushes the boundaries of our creativity as scientists. How exciting, says ...