Spacecraft to Study Mysterious Clouds


	Spacecraft to Study Mysterious Clouds

invictus

4-26-2007 2:09 PM

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tags:

noctilucent clouds, nlc, space, aim, astronomy, science

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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/d5d2e4cb-fcdf-407f-8778-e4f81ed406e9/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://content7.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://content8.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>