Secrets of the Sun with Dara Ó Briain

Exploring humanity's vital relationship with the Sun, from sun-worship and monuments such as Stonehenge, to how the Sun was formed and where its ferocious power comes from.

Dara explores the darker side of the Sun, from the dangers of skin cancer to solar flares and the 'Bermuda Triangle of Space'. Plus, there is a look at the world's largest solar furnace.