In recent years, science has unveiled some astonishing secrets—from what lurks inside black holes to the discovery of a vast ...

While hiking through dense forest, we stumbled across a hidden opening in the ground – and it led to a cave over 150 feet deep. Rappelling into the darkness, we had no idea what we’d find below.

The umbrella leaks at places called sinkholes, from which surface water makes its way underground ... By a flickering lard-oil lamp he found and mapped some of Mammoth's passages.

Laboratory measurements of crushed quartz suggest earthquakes generate huge volumes of hydrogen underground, a potential ...

Tiedje's team extracted DNA from these deep soils and found that CSP1-3's ancestors lived in the water—hot springs and fresh water—many millions of years ago. They underwent at least one major ...

A loved-up couple who a visitor photographed as they got engaged at The Deep have now been found. Roxanne Saunders ... but there was no mobile reception underground. Roxy said it was a "lovely ...