Mammoth Cave National Park sprawls beneath the rolling Kentucky landscape, containing the longest known cave system anywhere on Earth. Not the longest in Kentucky, not the longest in North America, ...

Chalk up another victory for “Conan the Bacterium”—a rugged germ that fresh research suggests could conquer the solar system.

Scientists demonstrated that an Earthly extremophile might withstand being ejected from the Red Planet on debris spewed into ...

Scientists tested whether microbes can survive the shock of a planetary impact and found some may endure the violent launch into space.

Following a frosty winter that brought lots of destruction to the resort, spring is bursting with change for Walt Disney World. Popular attractions at Hollywood Studios and Animal Kingdom are closing ...