Doesn't mean there is either. You can't disprove it & you won't prove it. It's a hypothesis that's no use in understanding the world.
Yes, religion suggests things that have no use to understanding the world in raw science terms. Instead, it tries to find meaning. While I love science and the great benefits/improvements it gives us, it has not taken any steps (nor should it) towards finding true meaning in my life.
I think they conflict in the sense that people with that need to find meaning get strange ideas about the nature of the world. Of course it doesn't have to be this way, but it is often the case.
You mean like string theory?
It really depends on how you define "understanding". If the wonder of existence is such that you cannot believe it is anything but purposely created, so be it. There's nothing that conflicts with science in that belief.
Why can't Science and Religion complement each other? I don't believe in the 7-day creation, but that doesn't mean there's no higher power that played a role in the big bang, creation of life, and subsequent evolution.
The biggest problem Religion has is its resistance to change. The Bible was written thousands of years ago, across many centuries. It was written for its own time. As our knowledge and understanding of the world around us and the universe at large changes, so must our interpretation of the Bible.
It may sound lame, but the movie Dogma had a profound impact on my religious beliefs. Dick and fart jokes aside, the message that it is better to have a good idea rather than strict beliefs has stuck with me since I first watched it many years ago. The humor may not be everyone's cup of tea, but it is worth watching once.