## University of Cambridge

Is the Universe finite or infinite? Is there infinity inside a black hole? Is space infinitely divisible or is there a shortest length? We talk to philosophers and physicists to find out.

Are there parallel universes? Universes in which, rather than reading this article, you are still asleep; in which you are happier, unhappier, richer, poorer, or even dead? The answer is "possibly". It's a controversial claim but one that has won more and more followers over the last few decades.

Ray Goldstein explains what little green algae have told us about evolution the maths of synchronisation.

How do green algae manage a perfect breaststroke even though they haven't got a brain? Enter the maths of synchronisation.

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.

In this podcast we talk to Ivan Smith, invited lecturer at the ICM, about his work and what he likes about the ICM.

We talk to Jack Thorne about his lecture at the ICM 2018 and his work "faceting the gem stone" in number theory.

Clément Mouhot tells us about his work trying to understand some of the most beautiful structures in mathematics and physics.