| 11. | The ionosphere, geomagnetism and aurorae were studied.
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| 12. | Energetic electrons entering its thin atmosphere are responsible for the observed Ganymedian polar aurorae.
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| 13. | The aurorae of Saturn are highly variable.
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| 14. | Today, the dominant theories are that the rain is caused by red dust aurorae.
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| 15. | A music video for the track " Aurorae " was released on 7 August 2014.
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| 16. | Both lightning and aurorae have been observed on other bodies after extensive study at Earth.
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| 17. | Uranus has relatively well developed aurorae, which are seen as bright arcs around both magnetic poles.
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| 18. | Solar energetic particles can cause particularly strong aurorae in large regions around Earth's magnetic poles.
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| 19. | Schove and Peng-Yoke have suggested that the phenomenon may be connected to sunspots and aurorae.
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| 20. | During the Maunder Minimum aurorae had been observed seemingly normally, with a regular decadal-scale cycle.
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