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A rare mineral from Earth's lower mantle has been discovered inside a diamond from Botswana. The find breaks open a window into deep-Earth chemistry.

U.S. Secretary of State Antony Blinken has begun a three-nation Africa tour. His visit comes as eastern Africa is in turmoil — with civil war in Ethiopia and a military coup in Sudan.

The attack drone was supposed to be a symbol of the era of precision warfare. But are drones precise enough? Do they desensitize us to the casualties of civilians caught up between warring parties?

Nearly seven decades ago two Black women, bound together by military service, helped end discrimination on interstate buses. Their often overlooked story in civil rights history is getting attention.

Racial covenants made it illegal for Black people to live in white neighborhoods. Now they're illegal, but you might still have one on your home's deed. And they're hard to remove.

Six young Portuguese, alarmed at how the warming climate is affecting their future, are suing 33 European countries to compel them to significantly reduce carbon emissions.

All vaccinated adults could soon be eligible for a Pfizer COVID-19 booster. Democrats begin a nationwide drive to try to sell President Biden's agenda. Secretary of State Antony Blinken is in Africa.

NPR's A Martinez talks to CNN reporter Matthew Chance about the thousands of migrants who are still stuck in dire conditions along the border between Belarus and Poland.

With the nation's health care system strained by the pandemic, veterans with medical skills say red tape prevents them from using their military credentials to qualify for civilian jobs.

Puerto Rico declared bankruptcy four years ago. Officials and creditors have reached a deal, and a federal bankruptcy judge is considering whether to approve it.