(Description) Figure 8 Io, caught in the act. 200-km-wide false-colour image taken by NASA’s Galileo spacecraft shows an incandescent lava flow at the Tvashtar volcano.

Week 3: Looking closer

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This is an image of Io, caught in the act. 200-km-wide false-colour image taken by NASA’s Galileo spacecraft shows an incandescent lava flow at the Tvashtar volcano.

1.2 Present volcanism on other moons