Knowra Moons of Saturn Moons of Saturn The natural satellites gravitationally bound to Saturn, ranging from small irregular bodies to large worlds with atmospheres, oceans, and active geology.
Titan : Saturn’s largest moon, with a dense nitrogen atmosphere, methane lakes, and a water-ice crust. Its size and hydrocarbon cycle make it Saturn’s most Earth-like, yet chemically alien, moon.
Orbital resonance : A gravitational relationship in which orbiting bodies exert regular, repeated influence because their orbital periods have a simple ratio. Resonances organize several moons’ orbits and can drive tidal heating.
Saturn : The sixth planet from the Sun, a gas giant surrounded by a prominent ring system. Its gravity defines the orbital system in which the moons formed and move.
Cassini–Huygens : A NASA–ESA–ASI mission that studied Saturn, its rings, and moons from 2004 to 2017. Cassini supplied the close observations that transformed knowledge of Saturn’s satellites.
Enceladus subsurface ocean : A global body of liquid water inferred beneath Enceladus’s icy crust. Its depth, chemistry, and energy sources shape estimates of the moon’s habitability.
Enceladus : A small icy moon of Saturn that ejects water-rich plumes from fractures near its south pole. Its plume samples material from a subsurface ocean directly into space.
Tidal heating : Internal heat generated as gravitational tides flex a body's interior. Repeated flexing helps sustain geological activity inside Enceladus.
Solar System formation : The process by which the Sun and its planets formed from a collapsing cloud of gas and dust. Saturn’s regular moons emerged from material associated with the planet’s early formation.
Huygens probe : A European Space Agency lander that descended through Titan’s atmosphere and reached its surface in 2005. It directly measured Titan’s atmosphere and returned images from the surface.
Titan methane cycle : The movement of methane among Titan’s atmosphere, clouds, rain, rivers, lakes, and surface reservoirs. How this cycle is replenished over geological time remains uncertain.
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