Norrsken över Eyjafjallajökull

30 juni, 2010 kl. 21:16 | Publicerat i Natur | Lämna en kommentar
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Northern Lights over Erupting Icelandic Volcano

By Mail Online Reporter

[…] The Eyjafjallajökull eruption grounded flights across the UK and Europe in April after a cloud of volcanic ash which could damage jet engines drifted across the area. Scientists say the Northern Lights, a natural phenomenon called aurora borealis, is created by the sun’s super hot atmosphere, which blasts particles into the protective magnetic field surrounding the Earth. The magnetic field forces the particles toward the north and south poles. About 60 to 200 miles overhead, the particles bump into the Earth’s atmosphere and become electrically ‘excited’ – throwing off light of various colours. Although the phenomenon occurs around the clock, the lights are only visible at night. The best time of year to see them is during winter, when darkness in the upper latitudes stretches up to 24 hours.

Read more: Northern Lights over erupting Icelandic volcano | Mail Online

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