So, let’s say the worst happens, and Earth gets invaded by aliens. Not the friendly kind offering galactic peace treaties, ...

More is known about the terrain of Mars than about what lies hidden beneath the Earth’s surface. Krubera Cave in the republic of Georgia is currently the deepest known cave, at 7,208 feet.

Isotope analysis of limestone cave deposits indicates repeated humid periods in the Saharo-Arabian Desert over the past eight million years. The Saharo-Arabian Desert is one of the world’s largest ...

Sarawak Chamber, briefly illuminated by dozens of flashbulbs, is the largest cave chamber yet discovered on Earth—more than twice the size of Britain’s Wembley Stadium—and home to thousands ...

Lost River Cave is inviting the community to celebrate the planet during Earth Week with a full slate of activities. Since ...

This cave formed from the bottom up ... And we also want to be able to prevent taking microbes from Earth to those other planets 'cause we don't wanna contaminate those other planets.

MAMMOTH CAVE, Ky.- Across the nation, many people are celebrating Earth Day, and one local park is doing its part. Mammoth Cave National Park is making people aware of how important it is to take care ...