<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/83e2967f-ce6d-4dd4-a1d6-2ed8099811f4/0870B763-8704-42B4-A1F4-5F274D72E0C1/" 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.environmentalgraffiti.com/sciencetech/ode-awe-inspiring-crab-nebula/8226" href="http://www.environmentalgraffiti.com/sciencetech/ode-awe-inspiring-crab-nebula/8226" style="font-size: 11px;">www.environmentalgraffiti.com</a></div><blockquote style="text-align: left; padding: 0px 8px; margin: 4px 0px 8px 0px; background: transparent; border: none;" cite="http://www.environmentalgraffiti.com/sciencetech/ode-awe-inspiring-crab-nebula/8226"><div align="center"><img src="http://content7.clipmarks.com/blog_cache/www.environmentalgraffiti.com/img/D82B0FAF-A105-4BB2-B9CA-08CF9724BAC9" alt="Crab Nebula" /></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://www.environmentalgraffiti.com/sciencetech/ode-awe-inspiring-crab-nebula/8226">Astronomers in China and Arabia recorded what appeared to them as an exceptionally bright star in the night sky. The supernova that created the Crab Nebula was likely first visible from earth in April or May of 1054 AD. By July, it was brighter than anything else in the night sky except a full moon, and it remained visible to the naked eye for two years. </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.environmentalgraffiti.com/sciencetech/ode-awe-inspiring-crab-nebula/8226"><div align="center"><img src="http://content8.clipmarks.com/blog_cache/www.environmentalgraffiti.com/img/69903383-CBFC-4D20-9358-12A020751B21" alt="Crab Nebular filaments" /></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://www.environmentalgraffiti.com/sciencetech/ode-awe-inspiring-crab-nebula/8226">Filaments in the nebula are remnants of the atmosphere of the star that exploded and they consist mostly of ionized helium and hydrogen. </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.environmentalgraffiti.com/sciencetech/ode-awe-inspiring-crab-nebula/8226"><div align="center"><img src="http://content9.clipmarks.com/blog_cache/www.environmentalgraffiti.com/img/BEEF3843-D633-4B1E-97EA-7E5D4CC4E6F4" alt="Crab Nebula - visible light, x-ray" /></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://www.environmentalgraffiti.com/sciencetech/ode-awe-inspiring-crab-nebula/8226">At the center of the nebula, the pulsar’s equatorial wind slams into the nebula material creating a shock wave that is seen as wisp like structures that brighten then fade as they move away from the neutron star.</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.environmentalgraffiti.com/sciencetech/ode-awe-inspiring-crab-nebula/8226"><div align="center"><img src="http://content7.clipmarks.com/blog_cache/www.environmentalgraffiti.com/img/3605B483-798D-4D44-94B4-0EF0732775E4" alt="Crab Nebula Pulsar" /></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/0870B763-8704-42B4-A1F4-5F274D72E0C1/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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