A region surrounding a planet where charged particles accumulate under the influence of the planet’s magnetic field.
- That orbit regularly takes the station near the auroral zone and the ‘horns’ of the outer radiation belt - where the trapped particles descend toward the atmosphere.
- A major finding of the magnetospheric imaging instrument is the discovery of a new radiation belt just above Saturn's cloud tops, up to the inner edge of the D-ring.
- Other measurements obtained during the mission provided new data on the Earth's radiation belt and the discovery that the Moon has no magnetic field.
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