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Swarms of small galaxies

23 December 2012

At www.dailygalaxy.com/my_weblog/2012/12/swarms-of-tiny-galaxies-found-burs… … the Hubble Space Telescope has discovered lots of small galaxies that are teeming with star formation – or so the interpretation goes. These galaxies are churning out new stars so fast the consensus model is non-plussed. It seems the general view is that it took the Milky Way a thousand times longer to double its stellar population – but why should some galaxies differ from others? The best explanation seems to be that star formation is episodic.

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