Scientific American

A comet visible to the naked eye will make its closest approach to Earth on October 21

Wood vaulting, a simple, low-tech approach to storing carbon, has the potential to remove 12 billion tons of carbon dioxide from the atmosphere every year—and some companies are already trying it

A famous graphic, now updated, compares locomotion in the animal kingdom

After decades of speculation, two writers uncovered the answer to the Kryptos code’s final cipher

A growing mortality gap between Republican and Democratic areas may largely stem from policy choices

Experts say the strongest scientific studies identify three compounds that fight disease and inflammation