Depending on your goals, there are two different paths for 5K runners. If you’re a seasoned racer and, say, pushing for a PR, ...

We examine Lenin Peak's first ascents and two expeditions that ended in tragedy, including the deadliest-ever mountaineering ...

Russia launched a sweeping drone assault and airstrikes across Ukraine overnight into Sunday, killing at least four people, ...

A Russian drone attack on the Black Sea port city of Odesa early Thursday killed two people and injured 15 others, Ukrainian ...

Cheetahs differ from other big cats in key ways—from their unmatched speed and lightweight build to their inability to roar. Understanding these traits helps explain their unique role in the wild and ...