Solar Winds, Crucial To Life On Earth, Decreasing
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Solar Winds, Crucial To Life On Earth, Decreasing
Fri Sep 26 18:12:08 EDT 2008
Solar winds — invisible gas plasma emitted by the Sun — protect the solar system from cosmic rays that are hostile to terrestrial life. But new data from the Ulysses NASA probe indicate solar wind output is lower than has ever been previously documented. 
