Jupiter’s moon Io is the most ... its other large moons squeezes Io so that its interior is molten. That magma finds its way to the surface in lava lakes and volcanic eruptions.

The moon is hostile. A newly found cave could be a lifesaver. Jupiter’s volcanic moon Io has been erupting for billions of years Jupiter’s volcanic moon Io has been erupting for billions of ...

In size, Io is roughly comparable to the Earth’s moon, also known as “The Moon”. Io is wracked by volcanic activity though, with active lava flows on the surface, with mountain ranges and ...