Vittorio Sella was a pioneering Italian photographer whose work at the turn of the 20th Century shaped both mountain photography and mountaineering history. His rare images of the Himalayas remain ...

"Vanishing into thin air." Scientists alarmed by 'new normal' observed on slopes of Mount Everest: 'This is a wake-up call' ...

They look like glowing red jellyfish in the sky. Now, imagine seeing these rare lights over the tallest mountains on ...

Have you ever heard of—or even seen—red lightning? These are not animated characters but real atmospheric phenomena known as ...