May 13, 2016 04:08 PM EDT
5 Creepiest Mysteries of Space That Will Freak You Out
When a kitty cat goes missing you might put up posters. When your keys go missing you check your pockets and behind the sofa. But what do you do when you can’t find half of the visible matter in the universe? Check behind the fridge? Nope, it’s not there. So where is it?
