Abstract
Science must be objective. What would happen if, from a gender perspective, science was not considered objective? What would happen if there were some factors that prevented such objectivity and which were more decisive and important than time? The following text, based on a historical overview, shows some of the current studies on this subject and their findings. It shows that gender differences in science cannot be solved only by time as there are other factors, that could be unconscious, in the social consideration of the relationship man-woman, that do not allow equality.