Mount Everest notable "firsts" by climbers include: Summiting Everest with disabilities such as amputations and diseases has become popular in the 21st century, with stories like that of Sudarshan Gautam, a man with no arms who made it to the top in 2013. A teenager with Down's syndrome made it to Base camp, which has become a substitute for more extreme record-breaking because it carries many of the same thrills including the trip to the Himalayas and rustic scenery. Danger lurks even at base camp though, which was the site where dozens were killed in the 2015 Mount Everest avalanches. Others that
Mount Everest in 2012 people reached the summit, compared to 72 in 1990 and 145 in 2000. The difficult decisions made during the climbing season were highlighted by the departure of guiding company Himex from the mountain after concerns about a hanging serac in the Khumbu icefall. Two years later, 16 Nepalese guides were killed when ice broke from the serac and created an avalanche. In 2012 Montana State University conducted a scientific expedition to Everest. The Everest Education Expedition studied the geology of the Everest massif which includes Everest-Nuptse-Lhotse-Khumbutse, and advanced the state of mineralogy, strain, and predicted rock ages. Of interest was