The Hranice Abyss — or "Hranická propast," in Czech — is the deepest known freshwater cave in the world. Geologists think it could extend more than half a mile (1 kilometer) below Earth's ...

The deepest free-fall pit in the lower 48 United States, the Fantastic Pit features a staggering 586 feet (179m) drop - a ...

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.

Beneath the island’s rainforest, explorers search for new discoveries deep within some of the Earth’s largest, longest, and wildest caves. At dusk, a swarm of bats disperses to hunt in the ...

The deepest known point in a cave is in Krubera Cave in Georgia ... the crust and another 21 million feet to the center of the Earth. Better get digging! Follow Tech Insider: On Facebook More ...

Our drive to understand the evolutionary history of life on Earth leads us to search for clues deep underground. Cave divers are at the forefront of this research, helping us access some of the ...

The surface of our Earth is wriggling with life: it's the defining feature of our planet, which, far as we know, makes it ...

The Chinese Lunar Exploration Project is planning a new robotic moon mission to collects samples from the dark side ...

Descent into a cave is about overcoming obstacles the manifestation ... his team of Moscow extreme cavers were discoverers of the deepest secrets of the planet They set a new world record the ...