Tehran, Iran

Why People Live In Earthquake Zones

Millions of people now live atop fault lines because long ago small communities gathered at fresh water sources.
Yttrium crystal

The Downside to Renewable Energy

Rare earth elements are used in virtually all electronics, and mining them is a messy business.

Lee Smolin: Science Works Because We Care to Know the Truth

Lee Smolin speaks on quantum gravity, the nature of time, the role of ethics in science, and the importance of realism.
memory diagram

What is Memory?

Research suggests that memories may alter the brain's architecture, forming new synapses and strengthening existing ones.
Dark matter galaxy clusters

Dark Matter in the Universe

According to current scientific theories, dark matter and dark energy make up most of the universe. But we don't even know what they actually are.
A rendering of the Five hundred meter Aperture Spherical Telescope (FAST) telescope

A New Tool in the Search for Alien Life

China is bringing a huge new radio telescope on-line, and part of its stated purpose will be to search for alien life.

The Mysterious Ocean of Enceladus

Saturn’s moon Enceladus has a secret. For some years, scientists have been convinced that there is a liquid ...