The primary way that scientific knowledge changes over time is through the process of empirical research and peer review. As new discoveries are made and technologies advance, earlier theories may be challenged, revised, or replaced with more accurate models. This iterative process allows for the correction of errors and the integration of new evidence from various fields, leading to a deeper understanding of complex phenomena. Moreover, collaboration among scientists and the dissemination of findings through publications facilitate the continuous evolution of scientific knowledge, reflecting the dynamic nature of science itself.