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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.

Landon Cunningham and his father became celebrities at baseball's spring training, after Shaun Cunningham lunged to block the bat that was speeding toward his son's head.

An immigrant rights group in San Diego is pushing for DNA sampling of hundreds of unidentified migrants buried in Imperial County.

Shortly after fighting in World War II, American Benjamin Ferencz prosecuted his first court case. The defendants were Nazis, the place was Nuremberg. He recalls the trial on the 70th anniversary.

With fewer U.S. troops, there's less need to treat combat trauma at the Bagram Airfield hospital. But civilian casualties continue. A surgeon at Bagram has been trying to save an injured girl's leg.

Cancer treatment for kids has changed dramatically since the 1960s. Back then, doctors experimented with approaches that seemed promising but were also potentially toxic. Some survivors look back.

Two Americans were released Thursday from an Atlanta hospital after treatment for Ebola. The news has generated a flurry of questions about what happens after you survive Ebola. So we asked the CDC.

Just a week ago, the court reached a very different conclusion, also by an 8-1 vote, ruling Florida's death penalty system is unconstitutional.

A federal judge in Washington will allow John Hinckley to leave a mental institution and to live full-time with his mother. Hinckley shot President Ronald Reagan and three others in 1981.

Instead of quiet, researchers hear sounds of earthquakes, ships, "the distinct moans of baleen whales" and a passing storm, nearly 7 miles deep in the Pacific.