Stellar Nursery Blows Cosmic Super-Bubble

Deep inside star cluster NGC 1929 – a satellite galaxy of the Milky Way – winds from young stars and shockwaves from supernova explosions are carving a bubble-like structure 325 x 250 light year across. The stellar material glows colorfully.
credit : ESO/Digitized Sky Survey 2/R. Gendler/S. Brunier. Music: John Dyson
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