Gamma-Ray Burst Visible to Naked Eye

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	Gamma-Ray Burst Visible to Naked Eye

LOPix

3-24-2008 6:41 PM

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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://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/6c80e9bf-0fd2-4485-8a70-f59f707950f7/070FEE3B-F957-4627-9618-4D06C820FC45/" 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://news.nationalgeographic.com/news/2008/03/080321-brightest-object.html" href="http://news.nationalgeographic.com/news/2008/03/080321-brightest-object.html" style="font-size: 11px;">news.nationalgeographic.com</a></div><blockquote style="text-align: left; padding: 0px 8px; margin: 4px 0px 8px 0px; background: transparent; border: none;" cite="http://news.nationalgeographic.com/news/2008/03/080321-brightest-object.html"><div align="center"><img src="http://content7.clipmarks.com/blog_cache/news.nationalgeographic.com/img/562E8034-B1BB-4ADD-BE9B-6DF593060E23" alt="Gamma-ray burst image" /></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://news.nationalgeographic.com/news/2008/03/080321-brightest-object.html">Scientists have detected an interstellar explosion so bright that it was briefly visible to the naked eye—from 7.5 billion light-years away.</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://news.nationalgeographic.com/news/2008/03/080321-brightest-object.html">
NASA's Swift satellite captured the unprecedented spectacle using its X-Ray Telescope (left) and Optical/Ultraviolet Telescope (right).</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://news.nationalgeographic.com/news/2008/03/080321-brightest-object.html">
GRB 080319B, located more than halfway across the visible universe, crushes the previous record holder for most distant object visible without assistance by three orders of magnitude.</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://news.nationalgeographic.com/news/2008/03/080321-brightest-object.html"><P>
Gamma-ray bursts occur when massive stars run out of fuel and collapse, rapidly pouring out enormous amounts of high-energy radiation and particles. Acting like high-power cosmic blowtorches, the particle jets can also heat interstellar clouds to create bright afterglows, according to scientists.
</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://news.nationalgeographic.com/news/2008/03/080321-brightest-object.html"><P>
The bursts are the most brilliant occurrences in the universe after the big bang. GRB 080319B's afterglows, for instance, shone 2.5 million times more intensely than the <A href="http://news.nationalgeographic.com/news/2007/10/071015-brightest-supernova.html">brightest supernova on record</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/070FEE3B-F957-4627-9618-4D06C820FC45/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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