Mount Everest’s towering height isn’t shaped by tectonic forces alone. Its continued growth owes a quiet debt to nearby ...

The devices will be used to airlift heavy, dangerous loads normally carried by mountain guides. They might even deliver a hot meal or two.

The North Col (Col is a Welsh word, which means saddle) is the low point of one of the three great ridges that emanate from the summit of Mount Everest. In this case the North Ridge drops ...