NPR News

An ISIS-claimed car bomb exploded near the Syrian town of al-Bab, killing at least 51 people in an area that Turkish-backed rebels recently seized from Islamic State militants.

At least 34 of those killed were civilians, according to the Syrian Observatory for Human Rights, a British-based monitoring group. Witnesses told Reuters that the bomb went off in the village of Sousian, five miles north of al-Bab, at a rebel checkpoint crowded with people who had fled the fighting and were preparing to return to their homes.

Today, two table tennis pros met at the Qatar Open and ended up locked in a staggering 10-minute, 766-shot rally.

The International Table Tennis Federation, which runs the event, said in an Instagram video that it "has got to be the longest rally ever in modern table tennis history!"

Waymo, the company that began as Google's self-driving-car project, is suing Uber — alleging that when Uber bought a startup founded by Waymo veterans, it also bought thousands of design files that had been inappropriately downloaded from its servers.

In its lawsuit, Waymo cites forensic evidence as well as a vendor's email that it received by mistake.

From humble origins as the daughter of Eastern European immigrants, raised in the Bronx in the depths of the Great Depression, Mildred Dresselhaus scaled to great heights in the scientific community and attained the status of royalty — even if only in nickname.

Many studies designed to try out new drugs simply languish. They don't attract enough patients, and they aren't completed. That slows medical progress.

But here's a story of one study that has bucked that trend — in fact, it is so popular, scientists had to put the brakes on it for a while.

The White House is admitting that it discussed with the FBI media reports that Trump campaign officials were in contact with Russian intelligence agents and that Chief of Staff Reince Priebus asked the FBI to publicly knock down the story.

FBI Director James Comey refused.

President Trump skipped the annual Conservative Political Action Conference last year, but this year he was the annual gathering's hero who had finally returned the White House to Republicans.

London Bridge isn't falling down, but Britain's Parliament building — which sits along the River Thames and includes Big Ben — needs a ton of work. U.K. lawmakers are now analyzing a massive rehab plan that will cost billions of dollars and could force legislators to work somewhere else for years.

Readers asked: "When a humanitarian group has helped a community become self-sustaining, how can the group create a good 'exit strategy.'"

Our sources answered: Create the exit strategy from the get-go.

In the Wilmington neighborhood of Los Angeles, residential streets dead end at oil refineries. Diesel trucks crawl through, carrying containers from nearby ports. Longtime resident Magali Sanchez Hall says the pollution from all that has taken a toll, right on the street where she lives.

"The people that live here, the mother died of cancer," she says, pointing to a modest one-story home. "The people that live here, three people died of cancer."

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