See more of our trusted coverage when you search. Prefer Newsweek on Google to see more of our trusted coverage when you search. A woman expecting her first child got thinking about DNA, and sparked ...

Last week, Gov. Rick Perry granted the state's first posthumous pardon to a man who was innocent of a crime for which he had spent 13 years in prison. DNA testing cleared Tim Cole of a rape he did not ...

In a way, sequencing DNA is very simple: There's a molecule, you look at it, and you write down what you find. You'd think it would be easy—and, for any one letter in the sequence, it is. The problem ...

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But how do these DNA tests work, and how can they tell if two people are related to each other? A genetic test typically involves submitting a saliva sample to a laboratory. Scientists then extract ...

The surprise news of Osama bin Laden's death, the dramatic raid on his suburban compound, the swift identification and disposal of his body, the presidential announcement that "conveniently" ...

The answers were always there, waiting as the years and decades ticked by: Who killed five people kidnapped from a Kentucky Fried Chicken in Kilgore on Sept. 23, 1983? Finally, though, the science, ...