How do we know the universe is flat?(science.goweird.site)3 points·by tokhi·9 anni fa·0 commentsscience.goweird.siteHow do we know the universe is flat?http://science.goweird.site/2017/06/07/how-do-we-know-the-universe-is-flat-discovering-the-topology-of-the-universe/0 commentsPost comment—