Despite the so called universality of science, points of view differ culturally, and no mater how an apparatus shows us the universe, each one of us interprets things differently. So in this sense, science has nothing directly to do with ethics. If science pursues knowledge, maybe we should first discuss the morality of knowing things. On the other side, the USES of scientific knowledge will have to be discussed by non-scientists as well as scientists within each community's context, with no exclusion of global implications. In that quest there are some revelations that should be kept under ceratin controls.
Every action has a consequence.
Many things that science has revealed to the medical field are particularly useful. However, there are some aspects of science that seem to be dangerous, i.e. cloning humans. Although we may someday in the technical aspects be able to accomplish this task. The question still remains whether or not we should. Ethics and morality can not be separated from science because it is the only thing that prevents humans from destroying ourselves.