Collapsed sections of lava tubes, called skylights, could provide access to these subterranean refuges. Does this hole on Mars lead to a larger underground cavern? This image was captured by the ...

"My dream would be to see a mission going to a Martian cave or to a Martian lava tube, because one of those caves could be completely pristine from radiation," On Mars, some of the most likely ...

The formation of these pits is likely linked to volcanic activity on Mars. Lava channels underground, formed during volcanic eruptions, may have left behind empty tubes that eventually collapsed ...

We’re long past the stage of imagining the inhabitants of Mars as little green men ... also known as BRAILLE, headed to Lava Beds National Monument in Northern California to test autonomous ...