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Every image you've ever seen of a black hole has been a simulation. Until now. "We have seen what we thought was unseeable," said Event Horizon Telescope Director Shep Doeleman.

President Trump announced the secretary's departure amid a 10-year high in illegal border crossings. The two reportedly clashed as Nielsen was unable to stop flows of migrants entering the U.S.

Memory faltering as you age? Parts of your brain that used to work in sync may be out of step. A study shows that a precise jolt of electricity can bring these parts back together, boosting memory.

The attorney general has launched an informal look at how and why the decisions were made about the early Russia investigation and by whom. It augurs another new phase of the Russia saga.

A study finds that about 7 percent of all teen homicides between 2003 and 2016 were committed by a romantic partner. The majority of victims were teen girls.

Hogan Gidley, White House principal deputy press secretary, talks with NPR's Michel Martin about President Trump's proposal to relocate detained migrants to so-called sanctuary cities.

The Adelanto ICE Processing Center houses nearly 2,000 people in California. Federal, state and watchdog reviews say the Florida-based firm that runs Adelanto fails to provide adequate health care.

The 5 recipients of the Skoll Awards for Social Entrepreneurship predict how their projects will make the world a better place.

The WikiLeaks founder had been holed up in Ecuador's embassy in London since 2012. He was arrested on a warrant from 2012 for failing to surrender to the court and also on behalf of the United States.

Will AI in health care create a two-tiered system in which poorer people will be seen by a computer instead of a doctor? That's one concern about the burgeoning technology.