A paper was published this month by researchers at the Center de Recherche et de Restauration des Musées de France, revealing that the first carbon-based cave art has been found in Dordogne’s famous ...

Why it's incredible: The cave was created by lava from Mount Fuji and now holds giant ice pillars. The Narusawa Ice Cave is a lava tube that is brimming with icicles and ice pillars at the base of ...

If human beings want to survive on the other planets for a long time, they must first find or set up a safe, stable, and long-term shelter. Lunar lava tubes are geological structures of the moon ...

Rescuers are rushing to save an American man trapped in the third-deepest cave in Turkey after he became ill, the Turkish Caving Federation said. Some 150 rescuers are involved in a “complex” ...