How Saturn makes waves in its own rings

One of the last looks at Saturn and its main rings as captured by Cassini. When the spacecraft arrived at Saturn in 2004, the planet's northern hemisphere, seen here at top, was in darkness in winter. Now at journey's end, the entire north pole is bathed in sunlight of summer. Images taken October 28, 2016 and released September 11, 2017.  NASA/JPL-Caltech/Space Science Institute/Handout via REUTERS  ATTENTION EDITORS - THIS IMAGE WAS PROVIDED BY A THIRD PARTY - RC16A3699DF0

The rippling rings have help scientists better understand the planet's core. Image: REUTERS

Whitney Clavin
Science communicator, Caltech
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An illustration of Saturn and its 'fuzzy' core.
An illustration of Saturn and its 'fuzzy' core. Image: Caltech
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