There are many astronomy books on this subject, but I would suggest that you read the book "Cosmos" by Carl Sagan. Specifically, read the Chapters entitled The Lives of Stars, and especially The Edge of Forever. It talks not of Sagan's religious beliefs in these chapters, but will give you a comprehensive look at star/galaxy formation that is backed by the majority of scientists worldwide.
Furthermore, you might find some comprehensive answers to galaxy formation in a basic astronomy class offered at a junior college or university. There's some very usefull information to be found there. Lastly, you can read "A brief history of Time" or "The Universe in a Nutshell" by Steven Hawking, as the last poster posted.
The findings of science are increasing daily. For example, we now know that the majority of the universe is made from dark matter, matter that we can't see from our position in the universe. All we can see is the matter that is giving off some type of radiation, such as light. I could explain the formation of galaxies in more depth, but I'm tired so maybe I'll do it later. Cosmos will provide general answers, and you can buy it for about $7.00 or get it from your local library.
Later.
[This message has been edited by chrisc, 08-05-2003]
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