Astronomers have discovered 12 new moons around Jupiter, putting the total count at a record-breaking 92, as published by the International Astronomical Union’s Minor Planet Center. Saturn, the one-time leader, comes in a close second with 83 confirmed moons.
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Moons come in many shapes, sizes, and types. A few have atmospheres and even hidden oceans beneath their surfaces. Most planetary moons probably formed from the discs of gas and dust circulating around planets in the early solar system. Others were created by capturing objects that formed elsewhere and fell into orbit around larger worlds.