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You can trace 4,000 years of economic growth through the history of light. The ways we got from a candle, made from of animal fat, to the LED lights we have today tell a lot about our modern economy.

Seven observers are free more than a week after they were seized by separatists in eastern Ukraine. Kiev's government is putting new military pressure on separatists and taking control of TV towers.

Cops worldwide are getting savvy about social media, branching out beyond Facebook to solve everything from murder cases to thefts.

After a blustery final round at Augusta National, Bubba Watson earned his second win at the prestigious Masters golf championship on Sunday.

Appalachia boasts a thriving Latino population, and the University of Kentucky is documenting their often untold stories. Pedro Santiago Martinez and Ann Kingsolver discuss their project.

In Missing Microbes, Dr. Martin Blaser argues that the overuse of antibiotics, as well as now-common practices like C-sections, may be messing with gut microbes.

Maybe she's not just hungry. One scientist thinks the chubby bundles have a devious plan: Exhausting a mom delays the arrival of another brother or sister.

A flood protection authority is suing to try to hold the oil and gas industries responsible for Louisiana's land crisis. But policymakers are trying to stop the lawsuit, saying it's bad for business.

A crackling new translation of Giorgio Scerbanenco's crime novel Private Venus has just been released. Critic John Powers read it in a single sitting.

Two vehicles from different departments were rushing to the same fire in a suburb of Los Angeles when they collided. One of them careened into the restaurant.