A crumple of silver and red. "That's the plane," says our guide, Dominik Nellen, pointing. Below us on the Aletsch glacier is the wreck of a Piper Cherokee aircraft lost in 1968. Hidden for more ...

Dozens of bodies from the disaster are still buried under the glacier. The An-12 aircraft operated by the Indian Air Force was carrying 102 people when it crashed in Himachal Pradesh on February 7 ...