Ghost cosmos

June 4, 2019

?Space is big. You just won?t believe how vastly, hugely, mind-bogglingly big it is,? wrote Douglas Adams in The Hitchhiker?s Guide to the Galaxy. ?I mean, you may think it?s a long way down the road to the chemist?s, but that?s just peanuts to space.?

But not only is space mind-bogglingly big, its mind-boggling bigness has an extraordinary consequence: most of the Universe we see in our telescopes is not really there? Read article

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