Another Life?

I feel as though there could be other planets out there that can hold other life forms on them. They would be pretty much the same as earth just in a different postion. Each can contain water our wonderful resource and give us oxygen that we need. Also one day we may need to transfer to another planet if we keep using all of our precious resources and if our garbage keeps building up. But for having other life forms living out on other plants i don't totally agree with. I feel as though u have the humans that live on earth, and the people that orbit in space. But for other life forms such as aliens or other humans on other planets right now i would have to shake my head cause i don't believe it. There are those that live in heaven and hell but they come as ghosts not other life forms.