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Earth Hits Cosmic Pitch

Cacophonous radiation beamed from planet could easily be intercepted by aliens

By Nick McMaster,  Newser Staff

Posted Jul 1, 2008 3:55 PM CDT

(Newser) – Earth’s atmosphere produces a natural sound and beams it off into the universe, Space.com reports. The sound—a painful series of chirps and whistles—is made by the collision of charged particles from the solar wind with Earth’s magnetic field.   Read full story »

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