Heinerth is a professional underwater explorer, cave diver, and photographer. She's been diving in the most remote parts of Earth's oceans for 35 years. Her trip inside B-15 marked the first time ...

His photos appear frequently in National Geographic ... The technical problem is getting sufficient light inside the cave. The flat-black basalt just sucks up light, and with all the water ...

Scientists have found ancient nail tooth shark fossils deep inside Mammoth Cave in Kentucky, revealing new information about ...

Take an otherworldly journey through Hang Son Doong, the world's largest cave located in Vietnam. The cave is more than 500 feet tall, 650 feet wide, and 29,500 feet long. Video courtesy of Ryan ...

The fate of 40 Mississippian cave drawings in unknown after historic flooding at Dunbar Cave last month. The drawings are ...

The Mammoth Cave rock formation the shark fossil was found inside dates back approximately 340 million years, the park said.The rocks consist of limestones and shales which formed on the bottom of ...

The frigid, winter weather has provided the rare opportunity to step inside and explore stunning caves carved under the ice. Melting water from the glacier creates the twisting tunnels as it ...

The team there has uncovered a few new parts of the cave, and they actually went inside them. "Everyone says it might be the most explored cave in all of Arizona, and there's there's nothing more ...