Nocardiosis is a rare bacterial infection that attacks the lungs, skin and brain.

The discovery of nearly 20 alligator-size amphibians that died together during the Triassic in what is now Wyoming is providing scientists important clues about these creatures' lives.

April's full moon is the Pink Moon, rising April 12. It will also be a micromoon, appearing slightly smaller than usual.

After 11 years mapping the Milky Way, the European Space Agency's Gaia space telescope has retired. Scientists hailed it as "the discovery machine of the decade."

A metalworking die found in Denmark features a depiction of a horse and warrior that is remarkably similar to motifs on the Sutton Hoo helmet in England.

Under extreme metabolic conditions, like a marathon, the brain may turn to cellular fat stores to maintain function, according to a new study.