John D. Barrow talks to us about the laws of nature, how the complexity of the world conceals elegant mathematical symmetries, and how chaos can arise from order.

Chris Budd tells us how big data can be used to model riots, analyse photos and shorten airport queues.

What do physicists at CERN mean when they talk about "sigma levels"?

We asked cosmologist Pau Figueras everything we’ve ever wanted to know about black holes. In this podcast he explains what black holes are, physically, and how we hope to observe them.

Pau Figueras explains how Einstein's theories predicted the existence of black holes, and how to describe them mathematically.

David Spiegelhalter's new book Sex by numbers takes a statistical peak into the nation's bedrooms. In this interview he tells us some of his favourite stories from the book.

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