NOVA: Are these cave extremophiles completely outside of the carbon-based system found on the surface? Northup: The ones in Lechuguilla are mainly but not totally outside the surface world.

Among them, the pristine Lechuguilla Cave and the famed Carlsbad Cavern, home to one of North America's largest underground chambers. But there's more to this subterranean world than gigantic ...

Many of the world’s most iconic caves—Carlsbad Caverns and Lechuguilla in New Mexico, Mammoth Cave in Kentucky—were carved out over millions of years, by the plodding drip and flow of acidic ...

One of the most famed recent discoveries, Lechuguilla Cave, was discovered after decades of cave explorers hearing wind rushing through the cave. The National Park Service conducted a dig operation to ...

Lechuguilla Cave at Carlsbad Caverns is the deepest limestone cave in the country, and the fifth-longest known cave in the world. Read more about Oil and Gas Development Delayed Near Carlsbad Caverns ...

The National Park's primary caves include Carlsbad and Lechuguilla. Lechuguilla Cave includes the largest accumulation of ...