#moonofjupiter

[shuttleisland-blog]

One of Jupiter's moons, Io. "Io is the most volcanically active body in the solar system. Volcanic plumes rise 300 km (190 miles) above the surface, with material spewing out at nearly half the required escape velocity." Learn more: https://solarsystem.nasa.gov/planets/profile.cfm?Object=Jup_Io