Mount Everest is the highest mountain. Its summit is 29,029 feet above sea level.

If climbers want to summit Mount Everest, they have to brave the “death zone” — the area above 8,000 meters (26,247 feet) in altitude, where there is so little oxygen that the body starts to die, minute by minute and cell by cell. Last week, at least 11 people died on Everest, which is the …

Mount Everest is the highest mountain. Its summit is 29,029 feet above sea level. Read More »