6/6 Dr Helen Czerski reveals the latest scientific insights into icebergs.
5/6 Helen Czerski finds out how advances in technology are giving new insight into tornadoes.
4/6 The latest scientific insight into the dancing lights in the night sky known as aurora.
3/6 Dr Helen Czerski examines the hottest natural phenomenon on the planet - lightning.
2/6 Dr Helen Czerski looks at the anatomy of a volcano.
1/6 Examining the anatomy of an avalanche, including eyewitness footage from within one.