With the help of Robin Ince, Professor Brian Cox tackles more audience questions. He talks about the biggest question in physics, the nature of dark energy, running about with poles light years in length, climate change and winding up flat earthers. This week's questions come from shows in York and Birmingham.

In episode 2 Brian and Robin are joined by a very special guest, fellow particle physicist and Brian's regular co-author, Professor Jeff Forshaw. Recorded live from the shows in Preston and Reading they tackle questions of dark energy, the weight of the world, staring out of a black hole and more.

In the first episode of this brand new series, we present a selection of the questions posed to Professor Brian Cox from the audience, via Robin Ince, from the first two weeks of the tour. There's queries about quarks, the age of the universe and plenty more. This podcast was recorded live from the shows in Manchester and Newcastle.