Hyperion

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It’s chaos at Saturn’s moon Hyperion

5 December 2016 Astronomy Now

The moon Hyperion tumbles as it orbits Saturn. Hyperion’s spin axis has a chaotic orientation in time, meaning that it is essentially impossible to predict how the moon will be spinning in the future.

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Last look at Hyperion

4 June 2015 Kerry Hebden

Saturn’s irregularly shaped moon Hyperion, received its last close inspection from NASA’s Cassini spacecraft, before the probe heads on to its icy neighbour Dione.