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 ...

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 ...

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

On March 1, park staff spotted one that's particularly rare inside of caves here. "We started to notice these...small mounds of dirt, and we found, after closer inspection, that it was a very rare ...