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American veterans of the Afghanistan conflict are returning to the front lines as part of a program to help them heal.

Using a giant pulsed powered machine in New Mexico, researchers have recreated the conditions inside the Sun, and their results help reconcile theoretical models with how the Sun behaves.

The EPA moved ahead with far-reaching polices to reduce carbon pollution from power plants. And the president struck a landmark deal with China to curb its carbon output as well.

Champagne and other booze flow freely on New Year's Eve. But if you want to wake to a new year without the side effects of alcohol, don't fret: Science offers some guidance.

More than 8 million U.S. children don't get enough to eat. In Sacramento, Calif., one school is helping families cope by sending students home for the weekend with backpacks full of groceries.

The Kootenai County sheriff's office says the 2-year-old boy, who was seated in a shopping cart, reached into his mother's handbag, found the loaded gun and shot her. She died at the scene.

With two young men dead, the Food and Drug Administration is considering banning sales to consumers of a highly concentrated form of pure caffeine. It's too easy to overdose, officials warn.

Across the country and the world, people will ring in the New Year with rituals. Steve Inskeep reports on a few — including taking a plunge in to the freezing Irish Sea on New Year's Day.

Sonar may have located parts of the AirAsia flight that disappeared Sunday over the Java Sea with 162 people on board. Recovery teams have now pulled at least seven bodies from the choppy waters.

Cuban artist Tania Bruguera asked people to use a microphone to outline their vision of the country. Bruguera, however, was detained before the performance even started.