Geologist Anna Bidgood, from the University of Oxford, takes us on a journey to the top of the highest mountain range on the planet: the Indian Himalaya. Anna works in Ladakh, a region where the air is thin, the wildlife is rare and interesting commuters pass through her field area. She is investigating how the edge of India was forced deep beneath the Asian continent in a subduction zone, formed when the two continents collided. The clues she needs to understand this geological history are encoded in the minerals of rocks that have been down to extreme depths, where high pressures transform them before they find their way back to the surface. Listen to hear all about her adventures!