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Now she knows they can. Mireille Kamariza, who grew up in Burundi, is a graduate student at Stanford, working on a promising new test to detect the TB bacteria.

Jason Lewis was a conservative radio host in Minnesota and was recently elected to represent his state in the U.S. House of Representatives. He talks about his legislative priorities.

A shooting at the Fort Lauderdale-Hollywood International Airport left five people dead, and raises new questions about airport security. Aviation security expert Jeff Price explains.

A U.K.-based monitoring group says the explosion in rebel-held Azaz, on the border with Turkey, was caused by a fuel tanker rigged with a bomb. There has been no immediate claim of responsibility.

The American chestnut tree used to make up a quarter of the forests in the eastern U.S., but disease decimated these trees in the last century. Now there's an effort to restore the American chestnut.

Tsai Ing-wen is on her way to Central America for a nine-day trip, but she will be stopping in Houston on the way. After a diplomatic dust-up last month, China is watching the trip closely.

The December encounter between the white police officer and the black woman in Fort Worth was caught on camera and quickly went viral. The woman's two daughters also were arrested.

If it happens, it would be the first time such an event was predicted by scientists. They say two stars in the constellation Cygnus will eventually merge and explode.

See panoramic views of a trip to the moon in Skunk Bear's latest video. It's a journey that spans David Bowie's long career — and his greatest hits serve as the soundtrack.

A new study finds a link between warming waters and a dangerous neurotoxin that builds up in species like Dungeness crabs, clams and mussels — and can be hazardous, even fatal in people who eat them.