Simulated view of a black hole. Image: Alain Riazuelo.

We asked cosmologist Pau Figueras everything we’ve ever wanted to know about black holes. In this podcast he explains how you describe black holes mathematically, and how they were predicted by Einstein’s theories.

You can listen to the other part of this interview, where Figueras explains what black holes are, physically, and how we hope to observe them. You can also watch the video of this interview, and read the accompanying article.

Thanks to eusa for the music used in this podcast.