Did a Cosmic Collision Dam the Grand Canyon? A 56,000-Year-Old Mystery

Superbugs could kill millions more and cost $2tn a year by 2050, models show. Research on burden of antibiotic resistance for 122 countries predicts dire economic and health outcomes.

See the moon cross the Pleiades for the last time this year on July 20

11,000-year-old feast uncovered: Why hunters hauled wild boars across mountains