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Loading contentCassini's dust detector, which sampled the grains of Saturn's rings and the ice particles of Enceladus's plume, measuring their composition and revealing the moon's subsurface ocean.
Facts on this topic will be cited from these primary and reference sources.
Mission data, planetary science, space telescopes, and public-domain imagery.
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Orbital data, ephemerides, and small-body parameters for planets, asteroids, and comets.