Scientific American

Two leading theories of consciousness went head-to-head—and the results may change how neuroscientists study one of the oldest questions about existence

Researchers discover a new color outside the range of human color vision, but you have to laser your retinas to see it

Hypochlorous acid is safe enough to spray in your eyes yet more effective than bleach. Why isn’t it everywhere?

A host of factors figure into whether someone is female, male or somewhere in between

The spectacle of spring bird migration is in full swing, and you can get in on the action

The mathematics underpinning the modern method of elliptic curve cryptography originated with Renaissance architect Filippo Brunelleschi