News

Health & Medicine

NSAIDs may be risky early in pregnancy

Women who take common non-steroidal anti-inflammatory drugs during the first trimester could be endangering fetus, a study finds.

Chemistry

Molecular muscle gets the job done

Chemists solve a stubborn problem by resorting to strong-arm tactics.

Life

Dinosaur-era feathers sealed in amber

The richest collection yet of primordial plumage preserves pigment and fine details found modern birds.

Earth

Summer Arctic melt among worst ever

With no obvious weather pattern to explain this year’s near-record annual ice retreat, generally warming climate appears to be the culprit.