Getting humans into space is hard enough, but having them stay on another body for any length of time is even more challenging. When astronauts visited the moon in the Apollo missions, they lived in ...

Earthbound telescopes saw rills or gullies that later proved to be collapsed lava tubes. Then, in the Apollo era, close-up images showed large, very deep craters that later turned out to be empty lava ...

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 ...