Philosophy of cosmology

Do the dramatic advances in cosmology in the last century herald a new golden age of philosophy? A new collaborative project between cosmologists and philosophers is leading the way.

Why does time only ever move in one direction? We talk to philosophers of physics Jeremy Butterfield and David Wallace, as well as the eminent Roger Penrose about the puzzle time poses to physicists and what it has to do with the Big Bang and the second law of thermodynamics.

How did the all the stars and galaxies end up where we see them today? The very first instance of the Universe's existence holds the answer.

We discuss new and fascinating observations of gravitational waves with three of our favourite cosmologists.

In this podcast we talk to Blake Sherwin about a new map of dark matter, the mysterious substance that makes up 85% of the stuff in the Universe.

To celebrate what would have been John D. Barrow's 70th birthday, we revisit our podcast where we asked him: Are the constants of nature really constant?

Early career researchers have presented their work to politicians at the Houses of Parliament.

We may be a little closer to a direct detection of dark energy thanks to a new result that came about, in a sense, by accident.

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

What is dark energy and how do we know it's there?

Physicists believe that around 82% of all the matter in the Universe is invisible dark matter. But if it's invisible how do they know it's there?

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