Lunar lava tubes offer shelter from harsh surface conditions. Evidence suggests at least one large underground lava tube exists. These tubes could protect astronauts from radiation and extreme ...

Features like the Marius Hills pit could be skylights in lava tubes that could one day house underground moon bases. NASA/GSFC/Arizona State University Science fiction writers have spent decades ...

A human settlement on the Moon — or at least some kind of lunar base that astronauts can hang out in — is a romantic idea that sci-fi movies and video games have made us think is as simple as getting ...

The Narusawa Ice Cave is a lava tube that is brimming with icicles and ice pillars at the base of Mount Fuji in Japan. Lava tubes are natural tunnels that form beneath solidified lava flows after a ...

Chinese researchers are investigating the feasibility of having astronauts construct a base inside lava tubes under the lunar surface, an exciting prospect that could one day allow astronauts to ...