Sims, 34, summited Mount Everest around 11 a.m. on May 23 as part of a five-person expedition guided by Seattle-based Alpine Ascents International. And she didn’t stop there. After returning to camp ...

Last week, ultrarunner Tyler Andrews launched a last-ditch attempt to achieve the fastest-ever no-oxygen climb on Everest ... I was above the Balcony when I realized I was not going to reach ...

Mount Everest was first scaled 70 years ago. Climbers celebrate the milestone as climate change concerns grow Nepal is celebrating 70 years since Mount Everest was successfully scaled for the ...

Arsia Mons, the southernmost of the Tharsis Montes trio, stands at an awe-inspiring 20 kilometers high, dwarfing Earth's ...