Dark matter mystery deepens in cosmic 'train wreck'

Astronomers have discovered a chaotic scene unlike any witnessed before in a cosmic “train wreck” between giant galaxy clusters. NASA’s Chandra X-ray Observatory and optical telescopes revealed a dark matter core that was mostly devoid of galaxies, which may pose problems for current theories of dark matter behavior.

If you want to include this story in your blog, copy and paste this formatted text:

<p><a href="http://www.physorg.com/news106487537.html">Dark matter mystery deepens in cosmic 'train wreck'</a></p> <p>Astronomers have discovered a chaotic scene unlike any witnessed before in a cosmic “train wreck” between giant galaxy clusters. NASA’s Chandra X-ray Observatory and optical telescopes revealed a dark matter core that was mostly devoid of galaxies, which may pose problems for current theories of dark matter behavior.</p>