Although there are striking differences between the cells that make up your eyes, kidneys, brain and toes, the DNA blueprint ...

A 5,500-year-old skeleton has yielded the oldest known genome of the bacterium behind syphilis, revealing a lineage unlike ...

Savannah Guthrie issued a new plea on Feb. 15 for the safe return of her 84-year-old mother, Nancy, as the suspected abduction enters its third week.

Nancy Guthrie's disappearance shows how modern crimes unfold online and in the real world. Criminals use tech to hide. Investigators use it to track.

Some claimants may receive thousands of dollars.

Feb. 15 marks the 15th day since Nancy Guthrie, the 84-year-old mother of NBC "Today" show host Savannah Guthrie, disappeared from her Tucson-area home.

A newly discovered Viking grave with severed skulls and rope-bound corpses has unleashed a bizarre mystery that has stunned historians. A giant with a hole in his head. Six severed skulls. Rope-bound ...

For decades, researchers have worked to untangle the biological causes of neurodegenerative conditions such as Alzheimer’s disease. A primary focus has been the accumulation of misfolded proteins that ...

A glove containing DNA found about two miles from the house of “Today” show host Savannah Guthrie’s mother appears to match ...

Gas giants possibly developed slowly in the solar system. They developed cores layer by layer within a disk of ice and dust ...