In the realm of science, it is important to distinguish between scientific theories and scientific facts. A scientific theory is a well-substantiated explanation of some aspect of the natural world that is based on a vast body of evidence and has undergone rigorous testing and scrutiny. On the other hand, scientific facts are direct and verifiable observations or measurements that are accepted as true based on empirical evidence.
Scientific facts serve as the foundation for scientific theories, but theories are more comprehensive in nature and provide explanations for the observed facts. While scientific theories are not considered absolute certainties, they are the most robust and widely accepted explanations within the scientific community.
Given this understanding, it is difficult to identify a single "thing" that is 100% scientifically proven and not a theory. The scientific process involves continuous inquiry, observation, and experimentation to refine our understanding of the natural world. Many scientific facts exist, such as fundamental principles of physics or basic chemical properties, which have been extensively tested and verified. However, these facts are usually part of larger scientific theories that provide a framework for understanding how the natural world works.
Science is an evolving field, and our understanding of the universe continues to expand and refine through ongoing research and discovery. What may be considered a scientific fact today could be subject to revision or refinement in the future as new evidence emerges. Therefore, it is important to recognize that scientific knowledge is provisional and subject to revision based on the best available evidence and scientific consensus at any given time.