Warming temperatures are forcing Antarctic penguins to breed earlier and that's a big problem for two of the cute tuxedoed species that face extinction by the end of the century, a study said.

In his second term, the president is embracing a foreign policy that breaks sharply from U.S. tradition. Both supporters and critics say he's upending a global system in place for 80 years.

There has been a lot of conversation on social media about the downsides of polyester. But are those downsides as bad as they're believed to be? Are there upsides?

Medicaid is doing a novel payment system for the new, promising and expensive sickle cell treatment. It may become a model for all gene therapies being developed.

Like President Trump, lawmakers around the U.S. blame corporate homebuyers for high prices and want to restrict them. Experts say it's not so simple, and passing laws has proved difficult.

A large share of the departures so far this term were on the National Security Council staff.

NPR's Steve Inskeep speaks with Michigan Gov. Gretchen Whitmer about tariffs, the security of upcoming elections and the prospects of a female president.

Cheap gasoline, yes. Drill, baby, drill? Not so much. And electricity bills are going up, not down.

Indiana bullied its way into the history books Monday night, toppling Miami 27-21 to put the finishing touch on a rags-to-riches story, an undefeated season and the national title.

The three most-senior cardinals leading U.S. archdioceses issued the rebuke in a joint statement on Monday, saying recent policies have thrown America's "moral role in confronting evil" into question.