News

Animals

Here’s what narwhals sound like underwater

Scientists eavesdropped while narwhals clicked and buzzed. The work could help pinpoint how the whales may react to more human noise in the Arctic.

Climate

Antarctica has lost about 3 trillion metric tons of ice since 1992

Antarctica’s rate of ice loss has sped up since 1992 — mostly in the last five years, raising global sea level by almost 8 millimeters on average.

Environment

Sunshine is making Deepwater Horizon oil stick around

Sunlight created oxygen-rich oil by-products that are still hanging around eight years after the Deepwater Horizon spill.

Astronomy

The sun shrinks a teensy bit when it’s feeling active

The radius of the sun gets slightly smaller during periods of high solar activity, researchers say.