In this 3×60’ series for BBC Four, Dr Helen Czerski uncovers what colour is, how it works, and how it has written the story of our planet – from the colours that transformed a dull ball of rock into a vivid jewel to the colours that life has used to survive and thrive. But the story doesn’t end there – there are also the colours that we can’t see, the ones that lie beyond the rainbow. Each one has a fascinating story to tell.

BBC website