I've recently finished reading an excellent book by James P. Hogan. I had enjoyed much of his fiction, but this is a non-fiction work, based on his experiences with working scientists in a wide variety of fields.
The title is Kicking the Sacred Cow, and it's out of print, but still available in various e-book formats from Baen Books. You can find used copies of the printed book, but the prices were a bit steep for my taste, and the ebook experience was actually quite good.
The basic premise of the book is that while science accuses religion of excluding non-standard beliefs, the scientific community deals with scientific heresy in much the way. It's a fascinating survey of alternate theories in everything from physics and cosmology to medicine and biology.
Very highly recommended.
No, really - go get this book.
Go get it now.