Headed by Colorado-based glaciologist ... the world’s second-highest mountain in northern Pakistan, in 2023. “Since then, every mountain I’ve been on, I’ve just collected samples for ...

A woman has become the first from America to reach the summit of all 14 of the world’s tallest mountains. Tracee Metcalfe, 50, from Vail, Colorado, completed the feat on Friday by climbing 26 ...