Might be worth a listen.

This from DigiGuide

SCIENTIFIC DOCUMENTARY: Running Rings around Saturn
Channel: BBC Radio Four 854
Date: Thursday 6th January 2005
Time: 21:00 to 21:30
Duration: 30 minutes.
Richard Hollingham reports on NASA's Cassini spacecraft, currently
orbiting the great ringed planet Saturn, and its European robot
passenger Huygens.

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