Dangerous Earth

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Dangerous Earth

Dr Helen Czerski examines the hottest natural phenomenon on the planet - lightning. High-speed cameras show the secrets of upward lightning that's triggered by urban landscapes.

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2026
Dr Helen Czerski looks at volcanoes. New thermal imagery and ultra high-speed photography capture the complex processes crucial to understanding how and why they erupt.
The latest scientific insights into icebergs, from side-scanning sonar scrutinising the edge of glaciers to pictures that give us a unique glimpse of how they transform over time.
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