To put it simply...
Two people can look at the exact same thing and see it differently.
Therefore, belief plays into everything we see and do whether it be conscious or unconscious.
So, we cannot help but be strengthened in our belief systems based on "how" we see things.
Thus, there is no one or what scientific discovery that has strengthened my beliefs, because I don't know what beliefs you are talking about.
However, science does enhance my life and my perspective on communicating with others.
For example, the person below me quotes a creationist perspective of the Bombardier Beetle, but he is incorrect...
Why? here are all the sitings and scientific papers proving it was an evolutionary step by step process...
a step-by-step evolution of the bombardier system is really not that hard to envision. The scenario below shows a possible step-by-step evolution of the bombardier beetle mechanism from a primitive arthropod.
1. Quinones are produced by epidermal cells for tanning the cuticle. This exists commonly in arthropods. [Dettner, 1987]
2. Some of the quinones don't get used up, but sit on the epidermis, making the arthropod distasteful. (Quinones are used as defensive secretions in a variety of modern arthropods, from beetles to millipedes. [Eisner, 1970])
3. Small invaginations develop in the epidermis between sclerites (plates of cuticle). By wiggling, the insect can squeeze more quinones onto its surface when they're needed.
4. The invaginations deepen. Muscles are moved around slightly, allowing them to help expel the quinones from some of them. (Many ants have glands similar to this near the end of their abdomen. [Holldobler & Wilson, 1990, pp. 233-237])
5. A couple invaginations (now reservoirs) become so deep that the others are inconsequential by comparison. Those gradually revert to the original epidermis.
6. In various insects, different defensive chemicals besides quinones appear. (See Eisner, 1970, for a review.) This helps those insects defend against predators which have evolved resistance to quinones. One of the new defensive chemicals is hydroquinone.
7. Cells that secrete the hydroquinones develop in multiple layers over part of the reservoir, allowing more hydroquinones to be produced. Channels between cells allow hydroquinones from all layers to reach the reservior.
8. The channels become a duct, specialized for transporting the chemicals. The secretory cells withdraw from the reservoir surface, ultimately becoming a separate organ.
This stage -- secretory glands connected by ducts to reservoirs -- exists in many beetles. The particular configuration of glands and reservoirs that bombardier beetles have is common to the other beetles in their suborder. [Forsyth, 1970]
9. Muscles adapt which close off the reservior, thus preventing the chemicals from leaking out when they're not needed.
10. Hydrogen peroxide, which is a common by-product of cellular metabolism, becomes mixed with the hydroquinones. The two react slowly, so a mixture of quinones and hydroquinones get used for defense.
11. Cells secreting a small amount of catalases and peroxidases appear along the output passage of the reservoir, outside the valve which closes it off from the outside. These ensure that more quinones appear in the defensive secretions. Catalases exist in almost all cells, and peroxidases are also common in plants, animals, and bacteria, so those chemicals needn't be developed from scratch but merely concentrated in one location.
12. More catalases and peroxidases are produced, so the discharge is warmer and is expelled faster by the oxygen generated by the reaction. The beetle Metrius contractus provides an example of a bombardier beetle which produces a foamy discharge, not jets, from its reaction chambers. The bubbling of the foam produces a fine mist. [Eisner et al., 2000]
13. The walls of that part of the output passage become firmer, allowing them to better withstand the heat and pressure generated by the reaction.
14. Still more catalases and peroxidases are produced, and the walls toughen and shape into a reaction chamber. Gradually they become the mechanism of today's bombardier beetles.
15. The tip of the beetle's abdomen becomes somewhat elongated and more flexible, allowing the beetle to aim its discharge in various directions.
Conclusion...
Beliefs are based on level of education. The more educated, the less likely you are to believe in the supernatural.
Thus, two people can look at the same thing... The Bombardier Beetle, and if something stands out for them, that supports their belief, they will make it fit.
The more educated person is more likely right in the end, thus school and proper education rules out in the end to understand how and why things work rather than simply stating that god did it and ignoring all scientific evidence to support the claim of god did it.