Oh, and Ben Levi, please stop posting this nonsense that just because something is a Theory means it hasn’t been promoted to a fact or a Law yet. That’s just not true. The Wikipedia definition of a scientific theory is (important parts bolded):
A scientific theory is a well-substantiated explanation of some aspect of the natural world, based on knowledge that has been repeatedly confirmed through observation and experimentation.[1][2] Scientists create scientific theories from hypotheses that have been corroborated through the scientific method, then gather evidence to test their accuracy. As with all forms of scientific knowledge, scientific theories are inductive in nature and aim for predictive and explanatory force.[3][4]
The strength of a scientific theory is related to the diversity of phenomena it can explain, which is measured by its ability to make falsifiable predictions with respect to those phenomena. Theories are improved as more evidence is gathered, so that accuracy in prediction improves over time. Scientists use theories as a foundation to gain further scientific knowledge, as well as to accomplish goals such as inventing technology or curing disease.
Scientific theories are the most reliable, rigorous, and comprehensive form of scientific knowledge.[3] This is significantly different from the word “theory” in common usage, which implies that something is unsubstantiated or speculative.[5]“