Science and Technology

In 2014, the city of Flint, Michigan changed the source of its water from the city of Detroit to the Flint River. But in the transition to river water, officials didn’t implement proper anti-corrosion measures. Lead leached from old pipes into the water supply, and in some homes, lead levels measured 10 times higher than the limit set by the Environmental Protection Agency.

Last month, lead levels in Flint's city water finally tested below federal-action level. But residents are still being cautioned to use filters on their faucets, or to drink bottled water.

Harvard researchers say they’ve created metallic hydrogen

Feb 25, 2017

Hydrogen is the most abundant element in the universe — and we know it mainly as a gas, not a metal. But in 1935, the physicists Eugene Wigner and Hillard Bell Huntington theorized that under high enough pressures, hydrogen could actually become metallic.

Since then, scientists have tried all sorts of techniques to create metallic hydrogen. Now, reporting in the journal Science, researchers at Harvard University say they’ve squeezed hydrogen between two diamonds — and made metal happen.

How Can We Discover Better Antibiotics?

Feb 25, 2017

Can This Treatment Combat Hearing Loss?

Feb 25, 2017

A Mood Ring for Your Wrist

Feb 18, 2017

Why So (Heat) Sensitive?

Feb 11, 2017

“Overall, discovering the world is a complicated business,” says the theoretical physicist Carlo Rovelli. “And it goes slowly. It has always gone slowly. And it's still going slowly now, I believe.”

The Secrets of Sticky Frog Saliva

Feb 4, 2017

Building an Immunity to Fake News

Jan 28, 2017

How States Can Step Up for Science

Jan 28, 2017

The Gesture That Changed Human History

Jan 21, 2017

Pages