Cave explorers have traversed what’s now the deepest known cave in Australia. On Saturday a group of explorers discovered a 401-metre-deep cave, which they named Delta Variant, in Tasmania’s ...

Cave formation starts with a simple chemical reaction between water and carbon dioxide in the atmosphere, creating carbonic acid. This weak acid forms when rainwater combines with CO2, then ...

Just three years ago, a group of Idaho men traveled to an unnamed Western state and in an unnamed range of rugged mountains, hiked up a steep trail. At the top, they unraveled climbing ropes, stepped ...

Dimitri Laurent explores a typical gallery in the Nébélé Cave, which was formed by sulfuric acid speleogenesis. You can see a deep notch that indicates the former presence of a river, and sodium ...

Traveling around Eagle County, it is easy to wonder about the interesting geological features that dot the landscape. While we are blessed with abundant mountain peaks and canyons, there is one ...

San Francisco, Calif. -- Biofilms, which are complex layered communities of sulfur-consuming microbes, increase the rate of cave formation, but may also shed light on other biofilms, including those ...

On Sunday’s episode of The Excerpt podcast: Hidden beneath Earth’s surface are caverns and pathways that hold the secrets of our planet’s very beginnings. Even after decades of exploration, there are ...

Cave explorers have traversed what’s now the deepest known cave in Australia. On Saturday a group of explorers discovered a 401-metre-deep cave, which they named Delta Variant, in Tasmania’s ...

Boulder, Colo., USA: A study published on Friday in the journal Geology uses isotopes of sulfur to fingerprint the sources of sulfuric acid that have carved unique and beautiful cave systems in the ...