Sherpas working on Mount Everest carry all that and more – 20 kilograms (44 pounds) per person – navigating a four-hour hike ...

Whether hauling waste off the world’s highest peak or rescuing flood victims in Ukraine, drones are reshaping the frontlines ...

High above the Himalayas, where the air grows thin and the risks rise, a drone roughly the weight of a baby yak, but with ...