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January 2015:
Caught In the Act: Cosmic Radio Burst

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October 2013:
New Survey Tools Unveil Two Celestial Explosions

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February 2010:
Caught in the Act! Merging Galaxies Create a Binary Quasar

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June 2003:
New Light on Dark Matter


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September 2002:
Active Black Holes Discovered in Galaxy Cluster Bring into Question How Clusters Evolve

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September 2000:
New Telescope Opens in Chile

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January 1993
Dark Matter Found in “Typical” Cluster of Galaxies