This moon is known as the most volcanically active body in the solar system.
Io
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This moon is known as the most heavily cratered object in the solar system
Callisto
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This is the only large moon in the solar system with a retrograde orbit
Triton
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Strongest candidate for extraterrestrial life due to global subsurface ocean beneath an icy crust
Europa
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Only celestial body humans have visited beyond Earth
Moon aka Luna
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Has the thickest atmosphere of any moon
Titan
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This moon's ice volcanoes spout what is probably a mixture of liquid nitrogen, methane, and dust, which instantly freezes and then snows back down to the surface.
Triton
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It is the sole other place in the solar system known to have an earthlike cycle of liquids similar the water cycle
Titan
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The only moon known to have its own magnetic field
Ganymede
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The third largest moon in our solar system and about the same size as Mercury
Callisto
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This moon looks like it’s sprinkled with bright white dots that scientists think are the peaks of the craters capped with water ice.
Callisto
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Three of the largest moons in the solar system belong to this planet
Jupiter
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Name Jupiter's three moons
Ganymede, Callisto, and Io
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This moon's water-ice surface is crisscrossed by dark, reddish-brown cracks.