Io’s long-debated magma ocean may not exist. Juno spacecraft data reveals that tidal forces deform the moon differently than expected if a magma ocean were present. Instead, Io’s mantle appears mostly ...

NASA's Juno spacecraft has been investigating Jupiter's moon Io, the most volcanically active body in the solar system, and ...

It’s similar to how our moon affects ocean tides on Earth, except Io’s tides are much larger and affect solid ground, not water. These squeezes warm up the interior of Io, creating so much ...