Can every third planet revolving round it's start in every galaxy have life?
It's not necessary at all that the spacing between the planets and the star in every galaxy is the same as in our Solar System. But just for a moment, let's assume that there is one such galaxy in which there is a star with planets that have spacing between them and the star close to the spacings in our Solar System. Could the thrid planet in such system can have life? May be because our Earth, due to it's position (3rd) gets the right amount of Sun's radiation and because of that Earth has life!