Passage: The moons discovered by Galileo<unk>Io, Europa, Ganymede, and Callisto<unk>are among the largest satellites in the Solar System. The orbits of three of them (Io, Europa, and Ganymede) form a pattern known as a Laplace resonance; for every four orbits that Io makes around Jupiter, Europa makes exactly two orbits and Ganymede makes exactly one. resonance hii husababisha mvuto madhara ya tatu kubwa moons na kupotosha orbits yao katika elliptical maumbo, kwa sababu kila mwezi inapata ziada tug kutoka majirani zake katika hatua sawa katika kila orbit inafanya. nguvu ya mawimbi kutoka Jupiter, kwa upande mwingine, kazi ya circularize orbits yao. eccentricity ya orbits yao mara kwa mara flexing ya maumbo ya miezi tatu, pamoja na Jupiter ya mwezi stretching yao nje na kuruhusu yao kama wao kukaribia splanical maumbo, kwa kila nne ambayo Io hufanya karibu Jupiter, Europa hufanya hasa mbili orbits na Ganymede hufanya hasa moja.
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