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.

We celebrate Stephen Hawking with some fond memories of his colleagues.

As we are well over half way through advent, we thought today we'd look towards the future of the Universe

On the 17th day of advent we explore the birth and death of stars.

On the 16th day of advent we explore the mysterious force that drives our Universe apart.

On the fourteenth day of advent, we consider the night sky...which isn't actually black, but permeated by the faint afterglow of the Big Bang.

There are some interesting answers to this question, including that we live in a bubble multiverse!

On the ninth day of advent we find out about the maths of black holes.