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Published online 2 February 2005 | Nature | doi:10.1038/news050131-8
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Radio waves make aurora sparkle
High-energy beam illuminates the mystery of the northern lights.
What better way to investigate the delicate beauty of the 'northern lights' than by blasting them with radio waves?
Scientists working in Alaska have used such waves to make speckles of green light twinkle within the aurora borealis. The technique could help them to clear up the enigma of what causes the pulsating natural light shows.
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