There are a lot of things that seem confusing in science. For instance, we know that the Big Bang happened some 13.8 billion years ago, and we know that the observable Universe has a diameter of 93 billion light-years; however, since a light-year is the distance that light can travel in a year, how can the observable Universe have a diameter of 93 billion light-years? Along these same lines, we know that the universe is expanding faster than the speed of light, but what is it expanding into? And since light is the universal speed limit, how can the expansion of the universe be faster than the speed of light?
If these are the kinds of questions that keep you awake at night, then this video is for you.
In this video by Veritasium, Derek Muller explains some of the most notable misconceptions that people have about the Universe.