Researchers Find Universe's 'Missing Matter'

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The universe huge and stretches mind-blowingly far , so one of the best ways we have to find out more about it is to recreate the universe inside a computer and study that simulation. Studying simulations is how we've learned the structure of dark matter, for instance. But those simulations also predict that all the galaxies in the universe should be connected with long filaments of regular matter that, until recently, we'd never observed. Now, two teams of scientists finally succeeded in spotting those filaments, proving that our universe simulations are correct.

http://www.popularmechanics.com/space/deep-space/news/a28562/researchers-find-universes-missing-matter/