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Jets of matter clocked at near-light speed
Octane
follow
8
6-13-2007 5:08 PM
751 views
tags:
astronomy
,
light speed
,
gamma rays
,
black hole
,
neutron star
,
physics
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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/56dd3c67-0440-4ab5-a578-b0e45a237da3/953F1F9F-2CE6-4680-B499-064F9752645D/" 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://space.newscientist.com/article/dn12051-jets-of-matter-clocked-at-nearlight-speed.html" href="http://space.newscientist.com/article/dn12051-jets-of-matter-clocked-at-nearlight-speed.html" style="font-size: 11px;">space.newscientist.com</a></div><blockquote style="text-align: left; padding: 0px 8px; margin: 4px 0px 8px 0px; background: transparent; border: none;" cite="http://space.newscientist.com/article/dn12051-jets-of-matter-clocked-at-nearlight-speed.html"><H2 class="inline">Jets of matter clocked at near-light speed</H2></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://space.newscientist.com/article/dn12051-jets-of-matter-clocked-at-nearlight-speed.html"><P>The fastest flows of matter in the universe shoot out of dying stars at more than 99.999% the speed of light, new observations reveal.</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://space.newscientist.com/article/dn12051-jets-of-matter-clocked-at-nearlight-speed.html"><P>When a massive star runs out of fuel, it collapses to form a black hole or a neutron star. In the process, some of the matter from the star also explodes outwards at blistering speeds, producing an intense burst of gamma rays and other radiation.</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://space.newscientist.com/article/dn12051-jets-of-matter-clocked-at-nearlight-speed.html"><P>Scientists had predicted that the matter expanding in these explosions would be propelled to very nearly the speed of light, but it has previously not been possible to clock them precisely.</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://space.newscientist.com/article/dn12051-jets-of-matter-clocked-at-nearlight-speed.html"><P>Now, rapid follow-up measurements of two gamma-ray bursts have allowed a team of scientists to precisely measure the expansion speed of matter in these explosion to more than 99.999% the speed of light. The team was led by Emilio Molinari of the Osservatorio Astronomico di Brera in Merate, Italy.</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;"> </td><td align="right" style="background:transparent;border-width:0px;padding:0px;width:107px" width="107"><a href="http://clipmarks.com/share/953F1F9F-2CE6-4680-B499-064F9752645D/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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