<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://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/7065d479-b19d-4935-82f5-8f1757efe384/C5BE4FB6-64B6-4CCE-85AD-5392F82DAABB/" 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://spaceweather.com/" href="http://spaceweather.com/" style="font-size: 11px;">spaceweather.com</a></div><blockquote style="text-align: left; padding: 0px 8px; margin: 4px 0px 8px 0px; background: transparent; border: none;" cite="http://spaceweather.com/"><FONT size="2" face="Arial, Helvetica, sans-serif"> NASA's <A href="http://aim.hamptonu.edu/">AIM spacecraft</A> is in Earth orbit today following a flawless Wednesday afternoon launch aboard an Pegasus XL rocket. AIM is on a mission to study mysterious <A href="http://science.nasa.gov/headlines/y2003/19feb_nlc.htm">noctilucent clouds</A>, such as these photographed by Jan Koeman from his home in the Netherlands in June 2005:</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://spaceweather.com/"><div align="center"><img src="http://content8.clipmarks.com/blog_cache/spaceweather.com/img/6FC5CEA8-7F5D-4F97-A958-ACBDBD119739" alt="" /></div></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://spaceweather.com/"><FONT size="2" face="Arial, Helvetica, sans-serif">Noctilucent clouds ("NLCs" for short) were first noticed in the 19th century following the eruption of the Krakatoa volcano. <A href="http://spaceweather.com/nlcs/geometry.gif">After sunset</A>, electric-blue tendrils would spread across the western sky, mesmerizing onlookers. At first scientists thought the clouds were a side-effect of the eruption, but long after <A href="http://volcano.und.nodak.edu/vwdocs/frequent_questions/grp7/asia/question879.html">Krakatoa's dust</A> has settled, the clouds are still here. Indeed, they are becoming more widespread. Originally confined to high latitudes such as Canada and Scandinavia, NLCs have been seen in recent years as far south as Viriginia and Colorado.</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://spaceweather.com/">What causes NLCs? Theories range from space dust to global warming.</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/C5BE4FB6-64B6-4CCE-85AD-5392F82DAABB/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>

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