Jupiter's volcanic moon Io ... suggest that Io is pretty rigid, which means that its interior is fairly solid. There can be no magma ocean. If there's no magma ocean, where does the 'melt' come ...

The study, published in Science, indicates that for most of - or possibly all - its 4.57 billion years of existence, Io has been an angry world. As Jupiter's innermost large moon, it is subject to ...

Or perhaps more likely, look at ... by Io, thanks to Jupiter itself and nearby moons Europa and Ganymede. It’s possible that the small moon may have once held water, like Europa or Ganymede ...

You're not going to wake up one morning to see Jupiter hanging in the sky, but two stunning animations show what it would look like if you did ... look at Jupiter's moon Io.

Illustration of the Jovian moon Io, seen against the backdrop of ... ForbesSee Jupiter Tonight: Why The 'King Of The Planets' Will Look Its Brightest, Biggest And Best This WeekBy Jamie Carter ...