The proteins that make fish fluoresce could help scientists map the human brain.

A scientist dives beneath the surface of the frigid Antarctic ice sheet—and finds a landscape full of colors, light, and life.

Minerals are essential in making everything from skyscrapers tall, to mobile phones small.

A mysterious concept changed the way we understand reality.

Einstein's theory showed that time itself is affected by gravity.

Your perception of time depends on how you are moving.

Dive down to rare stromatolites—key clues to the evolution of virtually all complex life.

What does this geological wonder reveal about North America’s deep history?

Sea levels will rise by the same amount all over the world, right? Wrong. Here’s why.

Cyber threats from nation states and lone hackers are a persistent threat to America’s critical infrastructure.

We asked scientists, “What are your favorite images from space?” Here’s what they said.

The universe’s smallest particles fly down from space and emit from a radioactive rod.

Could parallel universes exist? If so, what would they look like and how would they form?