3 October 2025
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Hyperion

Picture This

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.

Picture This

Last look at Hyperion

4 June 2015 Astronomy Now

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.

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News Headlines

  • Nova outburst in Centaurus
    24 September 2025
  • Astronomy Now relaunches digital platform
    12 September 2025
  • Potentially habitable planet TRAPPIST-1e displays tentative evidence for an atmosphere
    8 September 2025
  • Ten-Year Lease Extension Confirmed at Herstmonceux Observatory
    18 August 2025
  • Graphic showing the close conjunction of Jupiter and Venus with other stars and contellations marked on a dark sky, above a horizon with trees in silhouette.
    Venus and Jupiter’s bright morning conjunction
    10 August 2025
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      • September last issue
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  • Reviews
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  • Spaceflight Now
  • Shop
  • Contact Us
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    • Ask Astronomy Now
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