Leaf through a textbook, watch a wellness influencer, or listen in at the gym, and it can feel as though the human body has already been mapped to exhaustion. Every muscle named, every nerve traced.

A growing number of discoveries are reshaping long-held ideas about human evolution, from unexpectedly early stone tools to new extinct human species and surprising evidence of ancient behavior once ...

A photo of a woman standing next to an English yew in Kew Botanic Gardens in London, England. Christine Dell’Amore poses next to an English yew at Royal Botanic Gardens, Kew, in London in 2025. A ...

Scientists edge closer to answering Mars’ biggest question: Did life ever exist on the red planet? Here's the latest from two new finds.

Two NASA rovers have strengthened the case that ancient Mars may have supported life. While not evidence of life, these discoveries show that ancient Mars had complex organic chemistry, long-lasting ...