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Colours Of Earth

   2015    Science
In this episode, Helen seeks out the colours that turned planet Earth multicoloured. To investigate the essence of sunlight Helen travels to California to visit the largest solar telescope in the world. She discovers how the most vivid blue is formed from sulfur atoms deep within the Earth's crust and why the presence of red ochre is a key sign of life. In gold, she discovers why this most precious of metals shouldn't even exist on the surface of the planet and in white, Helen travels to one of the hottest places on Earth to explore the role salt and water played in shaping planet Earth.
Series: Colour The Spectrum of Science
Jonestown: Terror in the Jungle
Jonestown: Terror in the Jungle

   2018    History
Senna
Senna

   2010    Culture
Tiger
Tiger

   2020    History
The Universe Season 7
The Universe Season 7

   2014    Science
The Beatles: Get Back
The Beatles: Get Back

   2021    Art
Planet Earth II
Planet Earth II

   2016    Nature
Minimalism
Minimalism

   2015    Culture
Through the Wormhole Season 6
Through the Wormhole Season 6

   2015    Science