## black hole

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.

Explore a mystery that intrigued Stephen Hawking until the end of his life.

Nothing, not even light, can escape from a black hole. Or can it? Find out about one of Stephen Hawking's most radical results.

Masaki Shigemori works on black holes and spacetime bubbles. 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.

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

In memory of Stephen Hawking we look at the equation he was most proud of.

Find out what gravitational waves will tell us about the Universe: from understanding its birth to figuring out whether black holes have hairs.

Find out about the heroic effort that led to the detection of gravitational waves and the excitement of their discovery.

What is a black hole? Cosmologist Pau Figueras explains.