Yes there has to be, billions of suns and solar systems sciencetist have already found planets close to earth just wait some day we will know for sure.

Is there not fossils from meteors

Ya they have to be real. I know people are going to hate on what I say next... But if the big bang created up, the chances of it not creating some other living thing is so unlikely that you really cant put it into a fraction or a percent of 1. They might not be as smart or advanced or even as fall along in the evolution process as human kind is. But I 100% think they are real.

Depending what you concider "alliens" are. I think there could be other humans out there which we have not seen, however, the "Aliens" in cartoons i dont belive

Yes i think its very possible/

i think you would be stupid to belive there is no life beyond our solar system

Does anyone believe that they have visited our planet

I also beleive they built the pyrimids

There are billions of stars out there with at least one planet orbiting each of them, this throws up hundreds of thousands of possible earths. So in answer to your topic, yes, there MUST be aliens out there.

I say fake but even if they are real why would it mean they have flying ships and ray guns and look so weird they would most likely be just like us if in fact they were real which they are not