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Stanford physicist Carl Wieman is on a quest to bury the big lecture in favor of evidence-based techniques. But it's not clear higher education is listening.

Bernie Sanders and Hillary Clinton meet Thursday on the debate stage after recent testiness on the campaign trail.

Microsoft is asking a judge to declare part of a 1986 federal law unconstitutional under both the First and Fourth Amendments.

The companies had sought to dismiss the lawsuit filed by nine victims' families and a survivor over the AR-15 rifle used in the 2012 mass shooting at Sandy Hook Elementary School.

The Solar Impulse 2 is preparing to resume its flight around the world. It's aiming to be the first plane to make the journey powered only by the sun.

Dilma Rousseff was elected twice as the country's economy soared. But a bruising recession is now seen as the leading reason many Brazilians have turned against her.

A chemical called diacetyl, which is released as a natural byproduct of the coffee roasting process, has been linked to lung disease. A CDC group advises coffee plants to take precautions.

The rules, designed to make drilling safer and reduce the risk of a blowout, come six years after the Deepwater Horizon disaster. The oil industry says some of the requirements are too costly.

David Greene talks to Donald Trump backers in the Pittsburgh area, including an ex-factory worker and the son of a steelworker, who says his family isn't doing as well economically as his parents did.

Critics say the bill isn't constitutional and that it equates the Bible to the Tennessee walking horse or the Tennessee cave salamander.