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Dangerous EarthEpisodes

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  1. Iceberg

    6/6Dr Helen Czerski reveals the latest scientific insights into icebergs.

  2. Tornado

    5/6Helen Czerski finds out how advances in technology are giving new insight into tornadoes.

  3. Aurora

    4/6The latest scientific insight into the dancing lights in the night sky known as aurora.

  4. Lightning

    3/6Dr Helen Czerski examines the hottest natural phenomenon on the planet - lightning.

  5. Volcano

    2/6Dr Helen Czerski looks at the anatomy of a volcano.

  6. Avalanche

    1/6Examining the anatomy of an avalanche, including eyewitness footage from within one.