Last week’s announcement that a boot and partial remains believed to belong to the British explorer Sandy Irvine had been found on Mount Everest by a National Geographic documentary crew supercharged interest in a mystery that has endured since he vanished with George Mallory on the mountain 100 years ago.

The find comes 25 years after Irvine's climbing partner George Mallory’s frozen body was also discovered on the Himalayan peak.

A National Geographic documentary crew may have found partial remains of the foot of Andrew “Sandy” Irvine, the famed mountaineer who disappeared on Mount Everest 100 years ago.

During the filming of a National Geographic documentary, the remains of a man who died climbing Mt Everest were found over 100 years later. The group who made the discovery included Oscar winner Jimmy Chin,