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EVEREST HIMALAYAN RANGE, NEPAL - MAY 15: Aerial photograph of Mt Everest (back-center) and Everest's West Shoulder with Nuptse (Right - 8848m) May 15, 2003 on the Nepal - Tibet border. A record 1,000 climbers plan assaults on the 8,850-meter (29,035-foot) summit of Mount Everest to celebrate the 50-year anniversary of the first successful assault on the World's tallest mountain May 29, 2003. (Photo by Paula Bronstein/Getty Images)

EVEREST HIMALAYAN RANGE, NEPAL - MAY 15:  Aerial photograph of Mt Everest (back-center) and Everest's West Shoulder with Nuptse (Right - 8848m) May 15, 2003 on the Nepal - Tibet border. A record 1,000 climbers plan assaults on the 8,850-meter (29,035-foot) summit of Mount Everest to celebrate the 50-year anniversary of the first successful assault on the World's tallest mountain May 29, 2003. (Photo by Paula Bronstein/Getty Images)