In the final part of this enthralling series, Professor Brian Cox takes a final journey across the world from the Karnak Temple in Egypt to the Yoho National Park in the Rockies, demonstrating the many facets of the one thing which connects us all with the myriad wonders of the universe around us: light.

The third episode in this continually compelling series focuses on one of the most fundamental and astounding wonders of the universe: gravity.

The second episode of Professor Brian Cox’s compelling story of the universe takes us onward from philosophy to methodology, explaining how the building blocks of everything on planet Earth – including ourselves – can be found in the hearts of stars thousands of light years away.

Following on from 2010’s acclaimed Wonders Of The Solar System, Professor Brian Cox ramps up the expectation level with this new series, looking at the whole universe and its relation to us, our lives and the fundamental questions we have about our existence.