10 Things You Didn't Know About... - Season 1 Episode 3 Avalanches

Iain Stewart travels across mountain ranges and glaciers to reveal ten remarkable stories about avalanches. Over a million avalanches happen throughout the world each year, and yet we know more about the surface of the moon than we do about the chaotic turbulence inside an avalanche. Scientists have had to put themselves right inside a raging avalanche to find out more.