Moondust in the Wind 2


	Moondust in the Wind 2

mariana3

4-11-2008 4:10 PM

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tags:

astronomy, earth, geology, moon, out of this world, science, solarsystem

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<div style="margin: 12px 0px; font-family: arial; color: #333333; background: #ffffff; border: solid 4px #e5e5e5; width: 100%; clear: left;"><div class="CM_CTB_Content_Wrap" style="margin: 0px; padding: 0px;background-color: #ffffff;"><div style="border-bottom: solid 1px #dcdcdc; white-space: nowrap; margin-bottom: 8px; background-color: #eeeeee ;background-image: url(http://www.clipmarks.com/images/source-bg.gif); background-repeat: repeat-x; height: 24px; line-height: 24px; vertical-align: middle; padding-bottom: 4px; color: #666666; font-size: 10px;" ><a href="http://clipmarks.com/clip-to-blog/" title="see clips that are hot right now"><img src="http://content.clipmarks.com/blog_embed/6d3e911d-3d9e-4e17-9953-59ab4a2f13c3/3A3B2DF6-93F5-47B8-8D0E-6F75DAF54055/" alt="" width="19" height="19" border="0" style="vertical-align: middle; margin: 0px 4px; display: inline; border: none; float:none;" /></a>clipped from <a title="http://www.spaceweather.com/" href="http://www.spaceweather.com/" style="font-size: 11px;">www.spaceweather.com</a></div><blockquote style="text-align: left; padding: 0px 8px; margin: 4px 0px 8px 0px; background: transparent; border: none;" cite="http://www.spaceweather.com/">Unlike Earth, the Moon has no magnetic field to ward off charged 
              particles from the Sun. Solar wind blows directly onto the lunar 
              surface. Researchers have long suspected that electrons in the solar 
              wind become embedded in moondust, causing the dust to "charge 
              up" and giving the Moon a very bad case of static cling. <FONT size="1">(continued 
              below)</FONT></blockquote><div style="height: 2px; font-size: 2px; background: #dcdcdc; border-bottom: solid 1px #f5f5f5; margin: 2px 4px;"></div><blockquote style="text-align: left; padding: 0px 8px; margin: 4px 0px 8px 0px; background: transparent; border: none;" cite="http://www.spaceweather.com/"><P>Strange things can happen when moondust gathers charge. For one, 
              the dust might rise up and, propelled by electrostatic repulsion, 
              rush in a diaphanous wind across the lunar surface. Imagine, dust 
              storms on an airless world with no weather!</p> <P>But it could be even stranger than that. NASA researchers have 
              discovered that moondust peppered with solar wind electrons gain 
              not a negative but a <EM>positive</EM> charge. This unexpected and 
              counterintuitive reaction makes it hard to predict what is really 
              happening to dust on moon. Get the <A href="http://science.nasa.gov/headlines/y2008/10apr_moondustinthewind.htm">full 
              story</A> from Science@NASA.</P></blockquote><div style="height: 2px; font-size: 2px; background: #dcdcdc; border-bottom: solid 1px #f5f5f5; margin: 2px 4px;"></div><blockquote style="text-align: left; padding: 0px 8px; margin: 4px 0px 8px 0px; background: transparent; border: none;" cite="http://www.spaceweather.com/"><div align="center"><img src="http://content8.clipmarks.com/blog_cache/www.spaceweather.com/img/3A7CEE55-E809-4028-930E-57E7C7B438B7" alt="" /></div></blockquote></div><div style="margin: 0px 6px 6px 4px;"><table style="font-size: 11px;border-spacing: 0px;padding: 0px;" cellpadding="0" cellspacing="0" width="100%"><tr><td style="background:transparent;border-width:0px;padding:0px;">&nbsp;</td><td align="right" style="background:transparent;border-width:0px;padding:0px;width:107px" width="107"><a href="http://clipmarks.com/share/3A3B2DF6-93F5-47B8-8D0E-6F75DAF54055/blog/" title="blog or email this clip"><img src="http://content9.clipmarks.com/images/c2b-foot.png" border="0" alt="blog it" width="107" height="17" style="border-width:0px;padding:0px;margin:0px;" /></a></td></tr></table></div></div>