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October 6, 2008 10:56:19 PM CDT

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Earth Hits Cosmic Pitch

Posted Jul 1, 08 3:55 PM CDT in Science & Health 

(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.

Scientists had long theorized that the resulting radiation simply dissipated into space, but new research shows the radiation is beamed out along a narrow plane. As such, researchers believe, it could be more easily intercepted by anyone, or anything, listening in.

Source Space.com

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An image provided by NASA is a false-color picture showing the many sides of the supernova remnant Cassiopeia A.   (AP Photo)
In this image from NASA TV the shuttle Discovery is seen from the International Space Station against the azure sky of earth after undocking from the space station Wednesday, June 11, 2008.   (AP Photo/NASA TV)
An artist rendition released by the European Space Agency on Wednesday, Nov. 28, 2007 shows the main bodies of the solar system.   (AP Photo)
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space  • radio  • Earth  • aliens  • solar system  • radiation  • sound  • solar wind


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