Not at all, thanks to the peer review process. Any scientific finding of any individual scientist or a group of scientists is mercilessly scrutinized and picked apart by other unaffiliated scientists all over the world. Only if the finding makes it through this process does it begin to be accepted as a scientific truth, but even then it is constantly subject to any new evidence that is discovered at any point in the future. This process allows us to have a massive degree of confidence in any findings that continually fail to be proved incorrect by it, which grows stronger as the amount of time the finding survives increases. Faith is in no way a component.