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Galaxies give birth to stars on cosmic highways
tabsey
follow
3
1-30-2008 4:23 AM
214 views
tags:
astronomy
tabsey
says:
A true celestial love story.
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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/dfbc493c-9dae-4e59-9da9-e2852a26c318/9AD38D09-90FB-4236-8E01-9A6FDA9C3005/" 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/dn13247-galaxies-give-birth-to-stars-on-cosmic-highways.html?feedId=online-news_rss20" href="http://space.newscientist.com/article/dn13247-galaxies-give-birth-to-stars-on-cosmic-highways.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/dn13247-galaxies-give-birth-to-stars-on-cosmic-highways.html?feedId=online-news_rss20"><P>Galaxies tend to give birth to their stars on the road, while travelling down intergalactic highways towards cosmic cities called galaxy clusters, new Spitzer Space Telescope 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/dn13247-galaxies-give-birth-to-stars-on-cosmic-highways.html?feedId=online-news_rss20"><P>Galaxies in relatively empty regions of the universe flock towards densely populated galaxy clusters, attracted there by the clusters' gravity. The galaxies tend to move along cosmic highways called <A href="http://www.newscientist.com/article/dn2624-astronomers-detect-the-universal-web.html">filaments</A>, which are concentrations of gas and invisible material called dark matter.</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/dn13247-galaxies-give-birth-to-stars-on-cosmic-highways.html?feedId=online-news_rss20"><P>Because galaxy clusters are so densely packed, galaxies that live inside have more opportunities to brush up against one another, sometimes triggering star formation. Astronomers once thought this would make galaxy clusters the most fertile places for stars to form.</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/9AD38D09-90FB-4236-8E01-9A6FDA9C3005/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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