general relativity

Cosmology has an ambitious goal: to understand the Universe in its entirety. Find out more here.

Find out all you need to know about the cosmic microwave background in this comprehensive overview.

Straddling the boundary between pure and applied mathematics.

How will the Universe end? In a big crunch? Or a big freeze? It all depends on its shape...

Find out about the heroic effort that led to the detection of gravitational waves and the excitement of their discovery.

A quick introduction to one of the greatest discoveries of the century.

A quick introduction to the monsters that lurk at the centre of each galaxy.

David Tong explains one of the most important equations in science.

The newly observed ripple in spacetime will help us unlock some of the secrets of the Universe.

Time and space form the stage on which events unfold. But what if the stage itself becomes part of the action? We take a brief tour through the history of space and time and see how ideas have changed since the time of Isaac Newton.