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Thursday, November 9, 2017

Expanding light echo spotted around supernova

http://ift.tt/eA8V8J Hubble images reveal an expanding shell of light from a supernova explosion sweeping through interstellar space three years after the stellar blast was discovered. The "echoing" light looks like a ripple expanding on a pond. The supernova, called SN 2014J, was discovered on Jan. 21, 2014.

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