A Super-Efficient Particle Accelerator

This image of data from NASA's Chandra X-ray Observatory and the European Southern Observatory's Very Large Telescope shows a part of the roughly circular supernova remnant known as RCW 86.

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<p><a href="http://www.physorg.com/news165682009.html">A Super-Efficient Particle Accelerator</a></p> <p>This image of data from NASA's Chandra X-ray Observatory and the European Southern Observatory's Very Large Telescope shows a part of the roughly circular supernova remnant known as RCW 86.</p>