CNN — The Hubble Space Telescope captured images of a mysterious show playing out on Saturn's rings — ghostly, fleeting "spokes" that appear to move along the planet's rings. And scientists can't yet ...

New Hubble Space Telescope imagery of the Saturn show it's 'ring spokes' in orbit around the gas giant planet. Credit: ...

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It's 'spoke season' on Saturn when strange features appear in the planet's rings. The Hubble Space Telescope continues to ...