Io is the most volcanically-active world in the Solar System.
Jupiter commands its own system of moons, over 90 at the last count, including one that is truly unique.
Io.
NASA's Juno probe has been circling Jupiter since 2016, its orbit taking it ever closer to Io.
Its infrared camera saw a world consumed by fire.
Each bright patch a volcanic eruption.
Right now, rivers of lava are pouring across its tortured surface.
In places, the volcanic eruptions are so violent, they throw columns of gas and dust far out into space.
Io is the most volcanically-active world in the Solar System, yet its radius is just over half that of Mars'.
Remember that scene in Alien, where John Hurt and all the astronauts descend into the cave?
