All we have to decide is what to do with the time that is given us.
- JRR Tolkien
A team of 10 Nepalese climbers including Nirmal "Nims" Purja reached the summit of K2 at approximately 5pm local time, completing one of the last great challenges in mountaineering.
From studying glacial lakes in the world’s tallest mountain range, to attempting a 7,530m peak, these mountaineering scientists assess the risk of glacial lake outburst floods.
Aidin Bozorgi, Mojtaba Jarrahi and Pouya Keyvan feared dead by authorities after no communication atop world's 12th highest peak .