Tag Archives: Cygnus Loop

A Swan’s Scars (Zoom)

Image Credit & Copyright: NASA/JPL/Caltech/ Galaxy Evolution Explorer GALEX. GALEX Explorer page for this ultraviolet wavelength image: http://www.galex.caltech.edu/media/glx2012-01r_img01.html Sometime in the past, between 5,000 and 8,000 years ago, a massive star at least ten or twenty times the mass of … Continue reading

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