A supernova remnant about 20,000 light years from Earth

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Date taken 2008-09-30 10:30:01
Date uploaded 2008-10-14
Tags smithsonianinstitution, g21509, compositeimage, supernovaremnant, chandratelescope, chandra, 000lightyears, space, stars, telescopeimage, nebula, smithsonianastrophysicalobservatory
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