World

Trump signs executive orders to boost coal, a reliable but polluting energy source
Beijing rejects Ukraine’s claim Chinese troops are fighting alongside Russia

The Latest: Asia and European shares sink as US tariffs take effect

Study boosts link between maternal diabetes, autism
Astronomers spot two white dwarfs doomed to die in a quadruple detonation
India overhauling Himalayan Buddhist teaching to counter China
Vietnam to buy US defense goods in trade off
Fall in oil prices poses risk to Russia–report
RFK Jr. discourages fluoride in drinking water
South Korea sets presidential snap election for June 3