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An astronaut and two cosmonauts have landed safely back on Earth. While in orbit, they traveled almost 71 million miles, NASA says.

Researchers who study developing human embryos have long limited their experimentation to lab embryos that are no more than 14 days into development. Some scientists are now pushing that boundary.

It's a problem with many of the anti-HIV options. Even if they're proven to be effective, people don't always want to use them.

The state now will recognize concealed-carry permits from other states. In exchange, control advocates got more stringent laws on gun shows and protection for domestic abuse victims.

Law enforcement officials says they believe the shootings "stemmed from a domestic incident." They took place at two separate locations.

Around age 50, people may begin to forget things. This can be scary. But there are clear differences between the onset of dementia and totally normal, age-related lapses in memory.

Many insurance providers that offer mental health care are supposed to cover it just as they would cancer or diabetes care. But advocates say enforcement is a problem.

Troops returning from Iraq and Afghanistan are far more likely to develop post-traumatic stress disorder if they have suffered a concussion. The reason may be a change in the brain's fear circuits.

Moser is a central figure within the Austin music scene, transforming from fan to groupie to writer to cultural historian. As her life hits its sunset, she's saying good-bye.

American women are expected to dominate team sports at the Olympics. That includes water polo, where they are defending champions and have medaled every time since the sport was introduced in 2000.