Statistical impossibility??

First off I am new at this fourm and all fourms for that matter. I have a possible topic. I have no source or data to back what I am going to state but here goes anyway. I have heard that some physicists have stated that it would be statisticaly impossible for all the factors that go into making a place in the universe suitable for life (as we know it) to come about given that there is only one universe. I have also heard that to get around the staggering statistics people have stated that there are many Universes that we just don't know about. I open the floor for anyone that can bring any intelligence into this topic, I know I have not said anything intelligent.

Thank you to everyone who has posted a response to my question. I am sorry it could not have been more intelligent. I do not think I will be posting more questions for a long while. I will be spending my time researching the topics that the responders have given me, while reading the countless other interesting posts on this site. Thank you all for your warm welcome and hope to (some day) be able to offer some intelligent thoughts on the subject of creation versus evolution that I have become interested in.