Scientific American

Vitamin D supplements may help prevent the loss of telomeres, DNA sequences that shrink with aging, a large study shows. But the health effects aren’t yet clear

When these energy-giving organelles thrive, so do we

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

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

A quantum computer has used a single atom to model the complex dynamics of organic molecules interacting with light

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