A small crew out of the UK summited Everest in days with the help of xenon gas. Here's what xenon gas is, why it's used for climbing, and the risks of using it.

Xenon is a noble gas discovered in the 1880s that for decades was used as an anesthetic. It has been shown to increase production of the protein erythropoietin (EPO), which is produced by the ...

Four climbers went up and down Everest in under a week with the help of xenon gas—a record-breaking ascent that has ignited controversy in the mountaineering world.

KATHMANDU, Nepal — Using xenon gas treatment and the latest technology is making climbing Mount Everest not just faster but also better for the environment, cutting down garbage and waste, a ...

The use of xenon gas by a group of British mountaineers before they began an expedition to climb the world's highest mountain in less than five days has raised questions about its effectiveness ...

A group of British men went from London to the summit of Everest and back in less than a week with the help of xenon gas. Mountaineers and the Nepalese government weren’t pleased.

Four ex-military friends are planning to summit Everest without the usual lengthy acclimitization period, relying on inhalations of noble gas xenon to prepare them, despite warnings this method ...

Fries administered the xenon gas about a week and a half before departure. Whether the team’s success is attributable to xenon “is difficult to say,” Fries says.

Four British climbers became the first to scale Mount Everest on Wednesday using Xenon gas, which helped them save several weeks that mountaineers need to get used to high altitudes, an official ...

The four British military veterans say they still haven’t processed a speed climb for which they used xenon gas to acclimatize before the climb. Updated May 23, 2025. 6 min. Summary.

KATHMANDU, Nepal (AP) — Using xenon gas treatment and the latest technology is making climbing Mount Everest not just faster but also better for the environment, cutting down garbage and waste ...

KATHMANDU, Nepal (AP) — Using xenon gas treatment and the latest technology is making climbing Mount Everest not just faster but also better for the environment, cutting down garbage and waste ...