You know maybe humans live on several differnt planets in the universe that have the required minerals to survive there might be we just dont know if its true but i bet it is.As for aliens that are not human there has to be somewhere we just havent found them yet.
Protofai yuo have your opinion i have mine there must be 99999999999999999999999999999999999999999999999999999999999999999999999999999s of planets some of them have to have other humans but other intelligent life what do you mean plants rocks not very intelligent.
i dunno... yeah i seen too many cheesy alien movies with the guy in the alien suit in the c class old movies. i dont think there are litl green peopls, i think there could be some little boring protoplasm or something though, but who really cares about that?
Ehm, the universe is so big and ever expanding, so there are aliens. Though they wouldn't look anything like what we think. We couldn't even imagine how they'd look in our wildest fantasies.
And that thing with humans on other planets. That can be true. Though they wouldn't have come there in the first place, they must have been brought there. Life on earth was created by chance and randomness. That's why aliens wouldn't look like we think they look.