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OUTER SOLAR SYSTEM

Water–rock interactions within icy worlds

It has been generally thought that small icy bodies in the outer Solar System were chemically inactive due to its coldness. Laboratory experiments change this view by showing that water–rock interactions occur even in ice–rock mixtures.

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Fig. 1: An illustration of icy water–rock interactions possibly occurred in the interior of small icy bodies.

NASA/JPL/Space Science Institute (image of Rhea).

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Correspondence to Yasuhito Sekine.

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Sekine, Y. Water–rock interactions within icy worlds. Nat Astron 6, 525–526 (2022). https://doi.org/10.1038/s41550-022-01682-3

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