Could Galactic Walls Prove We’re Wrong About The Universe? Astronomers have just found the biggest galaxy wall yet. What is a cosmic great wall, and how do we find them? Facebook Prev Article Next Article Discover Checkout these cool gadgets... Related Posts How Do We Know The Universe Is Flat? Super Expensive Metals These Just Might be the 5 Scariest Theories Known to Man Does The Size Of Your Brain Matter? Does Shaving Your Body Actually Help You Swim Faster? Does the Earth Really Have a “Hum”?