Mercury's magnetosphere fends off the solar wind

The planet Mercury's magnetic field appears to be strong enough to fend off the harsh solar wind from most of its surface, according to data gathered in part by a University of Michigan instrument onboard NASA's MESSENGER spacecraft.

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<p><a href="http://www.physorg.com/news120922202.html">Mercury's magnetosphere fends off the solar wind</a></p> <p>The planet Mercury's magnetic field appears to be strong enough to fend off the harsh solar wind from most of its surface, according to data gathered in part by a University of Michigan instrument onboard NASA's MESSENGER spacecraft.</p>