Scientists have solved the mystery on why a "zombie" volcano in South America has been displaying possible signs of an ...

Under a swath of Kentucky hills and hollows is a limestone labyrinth that became the heartland of a national park. The surface of Mammoth Cave National Park encompasses about 80 square miles.

Cloudy. Slight chance of a shower, becoming less likely this morning. Winds south to southeasterly 15 to 25 km/h becoming light in the late evening. Daytime maximum temperatures between 9 and 14.