Scientific American Magazine

Sunshine may hold healing rays for a variety of autoimmune diseases such as multiple sclerosis. Scientists are turning this surprising discovery into treatments

A new generation of telescopes could peer back to the earliest epochs of the universe

Researchers are trying to rebuild sea ice above the Arctic Circle so it can reflect the sun’s warming rays, slowing climate change

When these energy-giving organelles thrive, so do we

A freak particle physics process could wipe out all galaxies and life—but it’s wildly unlikely

Mounting evidence from genome studies indicates that, contrary to received wisdom, our species has undergone profound biological adaptation in its recent evolutionary past