Grueling work, financial stress, and shifting values are pushing too many of the navy’s nuclear personnel out of the service. Here’s how it can turn things around.

See how six countries are faring amid efforts to protect 30 percent of the planet’s land and waters by 2030, and what will be saved if they succeed. 

The advanced U.S. fighter aircraft will mark a significant upgrade to Ukraine’s air force, but their impact on the war with Russia will hinge on several factors.

Justin Welby, the bishop of Durham in northeast England, will be the new archbishop of Canterbury. This is the most senior archbishop in the Church of England and a symbol of unity for seventy-seven …