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Showing results for tags 'early universe'.
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http://www.cnet.com/au/news/hubble-spots-mother-lode-of-250-ancient-tiny-galaxies/ The article links the consistent clearing of UV opaque space, called reionization, with the appearance of a large number of very faint galaxies about 700 to 900 million years after the big bang. These 250 galaxies represent the sphere of comoving space that took 13 billion years to reach us, thus we cannot know their ultimate fate; however we can surmise an approximate density. Couldh've the dust from the original stars, including supermassive stars we may never see and their associated shock waves triggered this round of star formation. I could imagine for example cosmic rays that slowed as they moved through increasingly variant comovong space relative to their origin, start interacting with gas.
