The Milky Way Galaxy, it looks something like the picture below right? Well at least we think it does. But how do we know it looks like a spiral that is similar with the one when we empty our bathtub? Is our map of the galaxy not only an illustration from our point of view, just like when we thought the earth was just a flat disc? Well to keep your mind at ease, there are definite mathematical ways to calculate are position within the Milky Way. Furthermore, with the help of radio waves we can predict pretty well what it looks like. To learn everything about these different methods to imagine our position within the Milky Way and how it looks like, just watch the video below.