Scientific American Magazine

A mismatch in the maturation of brain networks leaves adolescents open to risky behavior but also allows for leaps in cognition and adaptability

Galaxies in every corner of the universe have been sending out photons, or light particles, since nearly the beginning of time. Astronomers are now beginning to read this extragalactic background light

A newly discovered structure in cells underlies inflammation wherever it occurs—an insight that may lead to new treatments for ailments as diverse as atherosclerosis, Alzheimer's and fatty liver disease

In a wide variety of species, who befriends whom strongly influences how individuals and the larger group behave

Is NASA's Space Launch System a flying piece of congressional pork or our best shot at getting humans to deep space?

Scientists are identifying the remains of undocumented migrants who died crossing the Mexican border—people whose names would otherwise have been lost forever

Scientists are immunizing mosquitoes against disease with the help of a common microbe