Several factors help determine whether a given earthquake will generate a dangerous tsunami, but the process is not yet fully understood.

Captain America became one of the most popular superheroes during World War II. But after the war, without an obvious enemy to fight, the hero's identity began to morph.

The suspect in the recent New York City shooting had a note in his pocket, which claimed he has chronic traumatic encephalopathy. But that neurological condition can only be diagnosed with an autopsy.

World Photography Day is celebrated on Aug. 19 to celebrate the storytelling behind photos. This year, NPR wants to hear the story behind your favorite picture you've taken.

An 8.8 magnitude earthquake in Russia's far east triggered tsunami watches and advisories in Hawaii, Alaska, and the entire Pacific coast of the United States.

President Trump said he would pose an additional penalty on India for its trade relations with Russia, which Trump is trying to pressure over its war with Ukraine.

Far-Flung Postcards is a weekly series in which NPR's international team shares moments from their lives and work around the world.

Three months after militants killed 26 tourists at a scenic meadow in the Himalayas, India said on Tuesday that its security forces had found and killed three gunmen behind the massacre.

EMBARGOED TUE 7:05PM ET: A new study from Oxford University finds that a common European songbird sometimes divorces its partner between breeding seasons.

Susan Monarez is the first director of the Centers for Disease Control and Prevention to require Senate confirmation. She's also the first director without a medical degree in more than 70 years.

The South Carolina Department of Motor Vehicles unveiled new designs for the state's driver's license and identification cards, which feature security features and state symbols.

Trump went to Scotland for a golf minibreak, but the political firestorm over the Epstein files followed him there.