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 ...

Dawn Ryan (front), cave manager at Forestville/Mystery Cave State Park in southeast Minnesota's Fillmore County, and Krista McDermid from Zara Environmental during recent research to inventory animal ...

NOVA follows geologists and microbiologists as they explore caves in various stages of formation to investigate the role microbes play in the creation of some limestone caves. The program: reviews the ...

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 ...

Below the Chihuahuan Desert in southeastern New Mexico, lies an extensive system of limestone caves, among them the famed Carlsbad Cavern, home to one of North America's largest underground chambers.