<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/15fbdf06-7c26-4f8c-bb76-b56d078c963e/DC401BC6-E722-41F5-9C15-2CDFA2A89471/" 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://antwrp.gsfc.nasa.gov/apod/ap071228.html" href="http://antwrp.gsfc.nasa.gov/apod/ap071228.html" style="font-size: 11px;">antwrp.gsfc.nasa.gov</a></div><blockquote style="text-align: left; padding: 0px 8px; margin: 4px 0px 8px 0px; background: transparent; border: none;" cite="http://antwrp.gsfc.nasa.gov/apod/ap071228.html"><P> <B> Explanation: </B> This symmetric cloud dubbed the <A href="http://heritage.stsci.edu/2005/25/caption.html">Boomerang Nebula</A> was created by a high-speed <A href="http://www-spof.gsfc.nasa.gov/Education/wsolwind.html">wind</A> of gas and dust blowing from an aging central star at speeds of nearly 600,000 kilometers per hour. The rapid expansion has cooled molecules in the nebular gas to about one degree above <A href="http://eo.ucar.edu/skymath/tmp2.html">absolute zero</A> - colder than even the <A href="http://www.astro.ubc.ca/people/scott/faq_basic.html">cosmic background radiation</A> - making it the coldest known region in the distant Universe. Shining with light from the central star reflected by dust, the frigid <A href="http://antwrp.gsfc.nasa.gov/apod/ap030220.html">Boomerang Nebula</A> is believed to be a star or stellar system evolving toward the <A href="http://www.noao.edu/jacoby/pn_gallery.html">planetary nebula</A> phase. <A href="http://hubblesite.org/newscenter/newsdesk/archive/releases/ 2005/25/image/a">This Hubble image</A> was recorded using <A href="http://acept.la.asu.edu/PiN/rdg/polarize/ polarize.shtml">polarizing</A> filters (analogous to polaroid sunglasses) and color coded by the angle associated with the <A href="http://en.wikipedia.org/wiki/Polarization">polarized light</A>. The gorgeous result traces the small dust particles responsible for polarizing and scattering the light. The Boomerang Nebula spans about one <A href="http://science.howstuffworks.com/question94.htm">light year</A> and lies about 5,000 light years away toward the <A href="http://en.wikipedia.org/wiki/Constellation">constellation</A> <A href="http://www.seds.org/Maps/Stars_en/Fig/centaurus.html">Centaurus</A>. </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://antwrp.gsfc.nasa.gov/apod/ap071228.html"><P> 2007 December 28 <A href="http://antwrp.gsfc.nasa.gov/apod/image/0712/boomerang_hst_big.jpg"> <IMG alt="See Explanation. Clicking on the picture will download the highest resolution version available." src="http://antwrp.gsfc.nasa.gov/apod/image/0712/boomerang_hst.jpg" /></A> </P></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/DC401BC6-E722-41F5-9C15-2CDFA2A89471/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>

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