Prehistoric squirrel droppings were analyzed and found to contain genetic material of numerous ice-age beasts, plants, microbes and fungi.

The first global map of subterranean fungi networks reveals how massive its reach is worldwide.

Repeated doses of a tuberculosis vaccine lowered insulin needs in patients with two forms of diabetes, new trial data show. But more research is needed to prove the benefit.

Learn how to photograph the Milky Way in June with expert astrophotography tips on dark skies, camera settings, timing and composition.

The National Oceanic and Atmospheric Administration gives the climate event a 63% chance to "rank among the largest El Niño events in the historical record going back to 1950."

Archaeologists found a rare medieval burial of a woman, newborn child and horse in southern Russia.

Researchers have discovered a "megasite" of dead whales along with new species of marine life feasting on the corpses.

A recent, 10-year study from California identified many known or suspected carcinogens in artificial turf. Does it pose a danger?