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Which of Jupiter’s moons is larger than Mercury?
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Jupiter
Photograph of Jupiter taken by Voyager 1 on February 1, 1979, at a range of 32.7 million km (20.3 million miles). Prominent are the planet's pastel-shaded cloud bands and Great Red Spot (lower centre).
The moon of Jupiter that is larger than the planet Mercury is Ganymede.12
With a diameter of approximately 5,270 kilometers (3,275 miles), Ganymede is the largest satellite in the solar system. While Callisto is also comparable in size to Mercury, Ganymede is the specific Jovian moon noted for exceeding the planet's dimensions.13