Has religion motivated or held science back?

I think as much as science has brought pain and destruction to the world so much so has religion done to the world. Science brought atom bomb and religion brought crusade. But science also brings medicine, and religion Mother Teresa. But there are various forms of religions and some religion can bring progress to science and some set back. But some branch of science can also cause harm to human life. Say, scientific reductionism where you are nothing more than bunch of atoms.

I don't see why it always has to be a religion vs. science debate. First of all if you believe in God, i think you (or a least I ) would have to believe he is a scientist. It is not religion that has held science back but rather powerful people's interpretation of relgion and science. The Precolumbian cultures and Southwest indians were very religious (not in the monothestic way, of course) and the excelled at astronomy and dicovered many concepts before the Western world. they made discoveries about shooting stars, had accurate calendars. They were great farmers- and even that requires scientific mindedness. The problem with using science as a lone motivator- is that there are no morals involved (in of itself) that is where religion and/or ethics comes in. Some type of morals or spirituality needs to be taken into consideration when doing scientific studies that could potentially harm people and the environment.