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The large moons of Jupiter (Galilean moons)
There are currently 92 moons known to orbit Jupiter. The four largest – Io, Europa, Ganymede and Callisto – were discovered by Galileo Galilei in 1610 when he pointed the first astronomical telescope ...
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NASA Juno Spacecraft Snaps ‘Reddest Object In The Solar System’
It’s one of the four biggest moons in orbit around the gas giant. The others are Io, Ganymede and Callisto ... when you have a spacecraft. NASA's Galileo mission imaged Amalthea in 1999.
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Nasa's Juno spacecraft successfully enters Jupiter's orbit
Nasa says its orbit will bring it closer than its predecessor, Galileo, which launched in 1989. Galileo found evidence of subsurface saltwater on Jupiter’s moons Europa, Ganymede and Callisto ...
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Jupiter, ascending: See our solar system’s biggest planet at its brightest all year
Jupiter on Saturday will shine at its brightest for the year, as Earth’s orbit ... Ganymede, Callisto, Io and Europa. The four "Galilean moons" were named after Italian astronomer Galileo ...