This is an archived article and the information in the article may be outdated. Please look at the time stamp on the story to see when it was last updated. MARBLEHEAD, Mass. (AP) — David Breashears, a ...

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. To reach the highest point on Earth ...