Subject: Is looking for life on other worlds unscientific?

If we don't know whether life on other worlds exists, and have absolutely no 
evidence or clue that it does, perhaps even have the evidence of abscence of 
it (ex: life on Earth originated only once, if it were common in the Universe, 
life on earth would have a multiple origin in nearly 4 billion years). Isn't 
it absolutely waisting money on unscientific things, looking for something 
which we won't be able to prove in any forseeable future and having evidence 
of it only in the form of our desire for it to be there? Isn't it that we must 
first see a good reason why life exists perhaps the origin of life only then 
talk about whether it exist anywhere else. Isn't searching for life on other 
worlds a modern type of Faith that exists among ordinary people, science 
fiction, and perhaps even some scientists?

Re: Is looking for life on other worlds unscientific?