Bend, Oregon, is not only a haven for outdoor enthusiasts but also a gateway to a fascinating underground world. Hidden beneath its stunning landscapes lie lava tubes waiting to be explored. These ...

Astronauts train to scale a Mars volcano at an analogue site in France. Lava tubes that crisscross the Martian surface might provide sanctuaries for the first human explorers on the Red Planet. (Photo ...

A Canary Islands volcano pushed rivers of molten lava through the earth. Now scientists and explorers trek through the cooling underground, looking for insights into life on this planet—and perhaps on ...

Researchers had only hypothesized the existence of underground lava tubes on Venus—until now. Using decades-old radar data, a team of scientists in Italy has discovered an empty, subsurface lava tube ...

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 ...

Volcanic caves are not just an Earth thing. Scientists have spotted signs of lava tubes on the Moon and Mars. Now, researchers at the University of Trento say they have strong evidence that one exists ...