Although Everest had first been climbed in 1953, this was the first successful ascent to be made without supplemental oxygen.
Mountain climbers face many dangers as they brave the cold winds of the peaks they climb. But the most serious thing they face is all in their heads--literally.
It may seem that the Denver Nuggets have quite the advantage when playing the Detroit Pistons as a result of altitude. Learn more on this Moment of Science.