Saturn’s Greatest Storm

Unlike other planets in the solar system, Saturn stores up huge amounts of energy over many Earth decades, and then unleashes it all at once in the form of an awesome, swirling, massive electrical storm that lasts for months. Scientists don’t know why Saturn behaves this way, but it’s a once-a-year occurrence on the ringed planet. Once a Saturnian year, that is: a year there is 30 Earth years.

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