If evolution is factual, then the scientific evidence here on earth indicates that the chance of life existing on any other planet is practically nil.
Furthermore, if evolution is factual, the scientific evidence of life here on earth also indicates that if there is any kind of life existing on another planet, the odds that there would advanced, intelligent life on that planet would be exceptionally small.
Evolution is a belief. It’s believed that amino acids and lightening or whatever created “life”. That dead things became alive. And that they organized themselves in a manner to reproduce. LOL.... and some people really believe it.
If you want to use Earth to figure out the possibilities of life arising on other planets, then you've got to assume that the universe is crawling with life.
Lifeforms have managed to inhabit nearly every niche imaginable on this planet. Using that observation as your starting point for hypothesis, you have to conclude that the same thing has happened throughout the cosmos.