Europa, one of Jupiter's most famous moons, is slightly smaller than Earth’s Moon, but is considerably brighter. This is because Europa’s surface is made of water-based ice, which allows it to reflect 5.5x the amount of sunlight that our Moon does.
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Europa, one of Jupiter's most famous moons, is slightly smaller than Earth’s Moon, but is considerably brighter. This is because Europa’s surface is made of water-based ice, which allows it to reflect 5.5x the amount of sunlight that our Moon does.