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Comets Lay Siege Around Nearby Star Systems

A European space telescope has stared deep into two star systems known to host exoplanets and made a rather cool discovery.

November 30, 2012
3:23 PM EST
This artist's impression shows the orbits of planets and comets around the star 61 Vir, superimposed on a view from the Herschel Space Telescope. Credit: ESA/AOES
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