general relativity

Everyone knows what time is. We can practically feel it ticking away, marching on in the same direction with horrifying regularity. Time has enslaved the Western world and become our most precious commodity. Turn it over to the physicists however, and it begins to morph, twist and even crumble away. So what is time exactly?

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.

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.

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