By: Tia Ghose
Published: 02/20/2013 08:01 AM EST on SPACE.com
Six speedy stars rocketing through space at up to 2 million miles per hour were li...
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By: SPACE.com Staff
Published: 04/06/2012 09:44 AM EDT on SPACE.com
The supermassive black holes thought to lurk at the heart of most galaxies ...
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