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Astronomers have spotted a mysteriously mature “baby cluster” of galaxies in the early universe, scarcely a billion years after the big bang. Although not a full-grown, full-blown galaxy cluster, the ...
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'The models were right!' Astronomers locate universe's 'missing' matter in the largest cosmic structures
Astronomers have discovered a vast tendril of hot gas linking four galaxy clusters and stretching out for 23 million light-years, 230 times the length of our galaxy. With 10 times the mass of the ...
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