An American climber died attempting to scale the world's fifth-highest mountain, Makalu, in the Himalayas, his expedition organizer said Monday. It was the second death of this climbing season.

He had already raised $1 million to help fund clinical trials and other programs there, Madison added. In April, a Nepali sherpa died on Mount Annapurna, the world’s 10th-highest mountain ...

Neurodivergent rocket scientist Meghan Buchanan of Colorado has climbed the Seven Summits. She hopes to complete the "Explorer's Grand Slam" by skiing to the North Pole.