Iran has named Mojtaba Khamenei as its new supreme leader. And, President Trump says he will not sign any more bills until Congress overhauls voting.

Scientists analyzed the urine of wild chimpanzees who'd feasted on fallen fruit to see how much alcohol they consumed from the fermented sugars.

The Pentagon said a Space Brigade sergeant was killed and the price of oil increased after Iran named Mojtaba Khamenei as supreme leader and then launched new attacks at Israel and Gulf states.

World shares tumbled on Monday, with Japan's benchmark Nikkei 225 index plunging more than 5%, after oil prices spiked at nearly $120 a barrel.

Geese's iconic "V" formations and trademark squawks can be seen and heard overhead as they go back and forth to the south through the year. But what does it take for such a long trip?

Oceans are rising as the climate changes, threatening coastal cities. A new study shows that much more of the world's population is vulnerable than earlier predictions had estimated.

A Republican push to alter the census may lead to a radical shift in redistricting for state legislatures — drawing districts that don't take into account children and non-U.S. citizen adults.

For decades, parents were told to help children build willpower like a muscle, to resist things like junk food and too much time on their screens. But new research suggests a better strategy.

A senior Israeli defense official tells NPR that Israel needs three more weeks to accomplish its goal of decimating Iran's military forces.

Twelve years after Malaysia Airlines Flight MH370 vanished with 239 people aboard, a deep-sea search has so far failed to locate the missing aircraft, as families pressed for the effort to continue.