Part 1 • 2015 • episode "S1E1" • Uranium – Twisting the Dragon’s Tail

59:06

In the first 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.

S1E1 • Colour: The Spectrum of Science • 2015 • Physics

53:28

Outnumbering atoms a billion to one, neutrinos are the universe's most common yet most elusive and baffling particle. NOVA joins an international team of neutrino hunters whose discoveries may change our understanding of how the universe works.

NOVA PBS • 2021 • Physics

58:33

Visiting a hidden location buried beneath the hills of Scotland, Helen experiences some of the most extreme acoustics in the world. Here she learns just how much information can be carried by sound. She discovers how sound has driven the evolution of truly incredible biological systems and complex relationships between creatures that exploit sound for hunting - and escaping from predators. Helen demonstrates how sound waves diffract (bend around objects) and in doing so help us sense danger and locate it. Helen explains how we are not limited to passively detecting sound waves; we can also use them to actively probe the world.

S1E2 • Sound Waves: The Symphony of Physics • 2017 • Physics

99:05

Follow scientists on their quest to understand and capture the first image of a black hole while exploring the limits of our knowledge of the universe.

2021 • Physics

49:38

Richard Feynman was one of the most brilliant theoretical physicists and original thinkers of the 20th century. He rebuilt the theory of quantum electrodynamics, and it was for this work that he won the Nobel Prize in 1965. In 1981, he gave Horizon a candid interview, talking about many things close to his heart.

Horizon • 1981 • Physics

4:51

…or why we live on an onion made of magma.

Physics