Jupiter

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Ganymede (Jupiter III)

Ganymede is the largest moon of Jupiter. It also happens to be the largest moon in our Solar System. Bigger than planet Mercury actually. It was discovered by Simon Marius in 1610, who named it Ganymede, after Zeus' cup-bearer. Its diameter is 5,268.2 km and it takes 7 days and 3 hours for it to orbit Jupiter. Ganymede's distance from Big J is 1.070 million km. Ganymede's core is iron-rich and liquid, it also has an internal ocean, [...]

Europa (Jupiter II)

Europa is one of 79 and the 4th largest moon of Jupiter. It was discovered by Simon Marius in 1609, who named it "Europa", after a princess from Greek Mythology. Its diameter is 3121.6km, just a bit smaller than Earth's moon. It takes roughly 3.5 days for Europa to orbit Jupiter. Europa's distance from Jupiter is about 670.900km.  Scientists believe that Europa has an iron core and an atmosphere (mostly oxygen). The surface is smooth and icy. Under [...]

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