By Gopal Sharma KATHMANDU (Reuters) -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,

Known for its stability and lack of reactivity, xenon is found in trace amounts in Earth's atmosphere. Despite being rare, it has several important applications.

Kenton Cool, 51, from southwest England, first climbed Mount Everest in 2004 and has been doing it almost every year since then.