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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
Africa with David Attenborough
Africa with David Attenborough

   2013    Nature
Himalaya with Michael Palin
Himalaya with Michael Palin

   2004    Culture
The Art of Germany
The Art of Germany

   2010    Art
The Art of Russia
The Art of Russia

   2009    Art
Galapagos with David Attenborough
Galapagos with David Attenborough

   2013    Nature
The Universe
The Universe

   2010    Science
The Sound and the Fury
The Sound and the Fury

   2013    Art
Stephen Hawking's Favorite Places
Stephen Hawking's Favorite Places

   2016    Science