Why is it Dark at Night? Have you ever wondered why you look up and see a dark sky at night? Facebook Prev Article Next Article Discover Checkout these cool gadgets... Related Posts How We Proved Earth Rotates Using a Giant Swinging Ball What Is The Resolution Of The Eye? NASA Scientists Fact-Check “The Martian” Veterans Are Asked What a Nuclear Bomb Explosion Feels Like? Blockchain: The Foundation of the Future Did Earth Always Have Water?