Scientific American Magazine

Scientists are discovering how the brain navigates

Astronomers have discovered a gargantuan planetary ring system and possibly a moon around another star

Arsenic poisoning from wells is getting worse in India and other parts of Asia, harming millions while scientists scramble to find safer sources

Researchers are developing molecular switches that can inactivate transplanted genes, paving the way for safer gene therapies. First up—better treatments for cancer

Every credible plan for reducing global warming hinges on carbon-trapping technology playing a major role. That doesn't seem likely

Nonhuman species can seem to comprehend procreation, but even apes lack the cognitive traits to truly understand

Mathematicians often see more than cold logic in symbols and numbers. They see the sublime