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Nature 447, 276-277 (17 May 2007) | doi:10.1038/447276a; Published online 16 May 2007

There is a Correction (14 June 2007) associated with this document.

Planetary science: Cracks under stress

Andrew J. Dombard1

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Two modelling studies provide complementary descriptions of how gravitational forces might help to form the plumes of water vapour that spout from cracks in Enceladus, one of Saturn's icy moons.

Enceladus, an icy satellite of Saturn only about 500 kilometres in diameter, is a remarkably active body1, 2, 3. NASA's Saturn orbiter, Cassini, observed plumes composed mostly of water, presumed to be spouting from a set of nearly parallel cracks, nicknamed the 'tiger stripes'.

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