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African women signed up for a trial to test pills and gels that can prevent HIV. They swore they were complying. Only they weren't. Reasons range from conspiracy theories to ... skin care.

The multiyear agreement, which will take effect in early 2015, ends a months-long stalemate between the online retail giant and the publishing powerhouse.

Following on a pledge to use his office's discretionary powers to address immigration, President Obama will remove the threat of deportation for up to 5 million people, says The New York Times.

With the Common Core State Standards' emphasis on "complex texts," some critics worry kids are being asked to struggle too much. We ask: How much is too much?

The new privacy guidelines are one-third their previous length. But experts say it doesn't change how much data the company will continue to gather from users.

Ron Riveira, who served in the Navy and Marines, now does hospice care for vets and says it allows him to help people like his grandparents. "Every time I go into a home, I see a piece of my family."

Why one education research technique, coming into use by most states, is proving so controversial.

The U.S. defense secretary said the Pentagon is aiming to invest about 10 percent more over the next five years to fix "systemic problems" of leadership, morale and aging equipment.

Fearing that Philae's batteries won't last past Friday, engineers are looking at possible ways to help it get more power from its solar panels. One ray of hope: Its comet is heading toward the sun.

Researchers writing in the journal Science say that if the rate of global warming goes unchecked, the frequency of lightning strikes will increase by 50 percent.