## general relativity

This podcast featuring Paul Davies, a theoretical physicist and cosmologist at Arizona State University and Director of BEYOND: Centre for Fundamental Concepts in Science, explores this difficult question and accompanies our *What is time* article.

To celebrate the recent centenary of the first major test of Einstein's general theory of relativity, we look back over how our picture of gravity has changed.

If, as string theory suggests, the world is made of strings, then what does that mean for a geometry of points? Find out more in this video.

The impact of GPS on our lives is celebrated with the Queen Elizabeth Prize for Engineering.

Nadia Bahjat-Abbas is a mature student working on one of the hardest problems of modern physics. Find out more in this video.

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.

2018 is the centenary of a mathematical result that changed the character of physics.

Can physics do for maths what maths has done for physics?

A quick tour to some of Hawking's most significant achievements.