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 ...

A study published 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 Pyrenees mountains of southern ...

A newly discovered cave hidden beneath the limestone mountains of Vietnam's Phong Nha-Ke Bang National Park has revealed one of nature's rarest geological treasures. Named Thang Cave, or Victory Cave, ...

Colin Duncan Taylor reveals how human history is woven into the landscape, from the present day back to its very first ...

Arizona's caves offer a cool escape from the state's extreme heat. The state features a variety of caves, including limestone caverns and lava tubes. Kartchner Caverns is a "living" cave with ...