Scientific American Magazine

Immune system overreactions may be the true culprit of cardiac illness—and lifesaving drugs can calm them down

How the discovery of altermagnets could change physics and computing

Scientists finally understand why birds were the only dinosaurs to pull through the end-Cretaceous mass extinction

With the rise of private orbital habitats, vacations in space are becoming a real possibility for the ultrawealthy

At Givaudan and IFF, chemists build—and safeguard—new aroma molecules tightly linked to emotion and memory

Modern luxury watches can be traced back to one of Napoleon Bonaparte’s younger sisters

Binoculars and other far-range optics span a gamut of price points. Here’s what separates top-tier from entry-level

Biologists are racing to save America’s freshwater mussels—the water-filtering keystone species that once filled the country’s rivers and streams—from extinction