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Colour: The Spectrum of Science

Episode 3: Beyond the Rainbow

Duration: 1 hour

on BBC Four HD

Available for years

Helen Czerski looks at the colours invisible to our eyes. To see the universe in a new light, she takes to the skies in a jet equipped with an infrared telescope. Show more

BBC Four HD

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BBC Four reflects arts, music and culture with an ambitious range of intellectually and culturally enriching programmes, taking an expert and in-depth approach to its subjects.