Leahy and Ouyed’s computer models suggest a quark-nova explosion would account for the extra energy observed in super-luminous supernovae.
Also here is another article on Quark Stars (same story): http://www.sciencedaily.com/releases/2008/06/080628224224.htm
Shortened link to article: We may have witnessed the creation of a quark star: http://bit.ly/9HXW3s, http://pear.ly/U28n

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