Kathmandu, Nepal — Famed Sherpa guide Kami Rita reached the summit of Mount Everest for the 31st time Tuesday, breaking his own record for the most climbs to the top of the world's highest mountain.

Mount Everest’s towering height isn’t shaped by tectonic forces alone. Its continued growth owes a quiet debt to nearby rivers. These rivers, cutting through deep gorges, have helped lift the mountain ...

Mountaineers have skied other routes on Mount Everest, but never the Hornbein Couloir, a steep, narrow gully on the North Face. Luca Galuzzi via Wikimedia Commons under CC BY-SA 2.5 American ...