Scientific American Magazine

By honing ax-making skills while scanning their own brains, researchers are studying how cognition evolved

Two precision experiments disagree on how long neutrons live before decaying. Does the discrepancy reflect measurement errors or point to some deeper mystery?

Enhancing the body's own immune system is leading to promising results in the battle against malignancy

Vaccines that target cancer cells using their own DNA could help eliminate tumors and prevent recurrences

Some types of intestinal bacteria may boost the body's ability to fight malignancy

A relentless rise in visitors could ruin the famous biodiversity hotspot in only a few years

Synthetic biologists are close to putting living cells to work diagnosing human diseases and repairing environmental damage

Fossils of enormous extinct seabirds are now illuminating how such behemoths took wing

Plastic in Apollo spacesuits, Andy Warhol paintings and other museum pieces is falling apart. Researchers are learning how to rescue the endangered treasures