Giant ropes of dark matter found in new sky survey


	Giant ropes of dark matter found in new sky survey

arifsali

2-21-2008 4:28 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://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/73bc0ddd-f30d-4e45-b9bf-46e6cfdb286e/0075E06F-A81C-4200-B4D4-399D620F7D7A/" 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/dn13362-giant-ropes-of-dark-matter-found-in-new-survey.html?feedId=online-news_rss20" href="http://space.newscientist.com/article/dn13362-giant-ropes-of-dark-matter-found-in-new-survey.html?feedId=online-news_rss20" 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/dn13362-giant-ropes-of-dark-matter-found-in-new-survey.html?feedId=online-news_rss20"><P>Huge filaments of dark matter have been detected in a survey of thousands of distant galaxies. The discovery supports the idea that dark matter drove the formation of galaxies and larger cosmic structures and resolves a discrepancy in previous studies about how much dark matter the universe contains.</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/dn13362-giant-ropes-of-dark-matter-found-in-new-survey.html?feedId=online-news_rss20"><div align="center"><img src="http://content7.clipmarks.com/blog_cache/space.newscientist.com/img/FDC4EE88-2F4A-4137-9522-059C7B9EF465" alt="Over time, matter pulls together into a web-like structure along a scaffolding of dark matter (Illustration: Center for Cosmological Physics/U Chicago)" /></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://space.newscientist.com/article/dn13362-giant-ropes-of-dark-matter-found-in-new-survey.html?feedId=online-news_rss20"><P>The survey, which is still ongoing, has already covered an area of the sky around 300 times the size of the Full Moon. Astronomers led by Liping Fu of the Institute of Astrophysics in Paris, France, have analysed data gathered by the 340-megapixel MegaCam – the <A href="http://space.newscientist.com/channel/astronomy/dn9345-turbocharged-camera-snaps-neighbouring-galaxy.html">largest astronomical camera in the world</A> – attached to the 3.6-metre Canada France Hawaii Telescope (CFHT) in Hawaii, US.</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/dn13362-giant-ropes-of-dark-matter-found-in-new-survey.html?feedId=online-news_rss20"><P>The observations reveal dark matter via a subtle effect called weak lensing, which studies galaxies' apparent shapes. The shapes can be distorted by the gravity of any intervening matter, which deflects the galaxies' light.</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/0075E06F-A81C-4200-B4D4-399D620F7D7A/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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