Light takes 8 minutes to reach Earth from the surface of the Sun. But its journey within the Sun takes hundreds of thousands of years. What is going on in there? What are light and heat? How does the Sun produce them?
In this astonishing adventure, you'll travel inside the Sun to discover what it's made of and how it works (including what it sounds like), how stars create the elements and the Northern Lights, how scientists came to understand the Sun, the latest research in solar physics and how a solar storm could threaten everything we know.
Dr Lucie Green is a solar physicist at UCL's Mullard Space Science Laboratory and regularly appears on the BBC's Star Gazing Live with Brian Cox, the Today programme, The Infinite Monkey Cage, BBC Breakfast, Sky at Night and 10 o'Clock Live. She works with the world's major space agencies, including NASA, and speaks regularly at the major science forums, including the Royal Society and Cheltenham Science Festival. In 2009 she was awarded the Royal Society's Kohn Award for her work in the area of public engagement with science.