This picture is done in the correct scale in terms of planets and suns. It should give you an idea of just how little our planet is and how massive things are We are essentially less then bacteria if you "zoom-out". Some may have a hard time understanding the sizes but it´s ok because the human brain was never designed to understand sizes this large In our galaxy they estimate that there are around 100.000.000.000 (100 billion) stars. It´s a pretty interesting thing considering in our solar system we have 8 planets. If we assume all of the other stars has 5 planets each that´s 500 billion planets. If we assume only one of those is a planet in the "goldie-lock zone" that means in theory it should be atleast 100 billion planets in our own galaxy with the same or close to our conditions which we have on earth. They think that there are more then 170 billion galaxies in the visible universe. 170 billion times 100 billion "earth planets" is an extraordinary amount of "earth-planets" i don´t even think my calculator can do numbers that big And that is by counting very low on amount of planets orbiting a star ¨ In theory the Universe should be filled with life.