A microscope exposes surprising living organisms lurking on an everyday toothbrush most people use without a second thought.

“I can’t help but notice we are in a Whole Foods,” I tell a Whole Foods employee who—perhaps having noticed me walking around ...

Farmer Wilson Bentley was the first to photograph the tiny snow crystals individually, and his collection reveals that each ...

Scientists have built microscopic, light-powered robots that can think, swim, and operate independently at the scale of ...