In the scientific world, cold hard facts are often termed
laws
hypothes
theories

Laws

Explanation:

A hypothesis is a question that a person asks after observing something, creating a scenario and then formulating that into a statement that would explain the phenomena that was observed. For instance, the basic formula for a hypothesis is If (independent vairable) is affected by (dependent variable) then (outcome) because (supporting evidence).

A theory is a conclusion that multiple people come to as a result of studing multiple experiments and how the hypothesis was either supported or refuted. This data is then formulated into a theory which acts to explain the observed event. KEEP IN MIND THEORIES ARE NOT FACTS

A law is a very solid theory that has seen little to no refuting by any experiments or scientific studies. For a theory to become a law, it must undergo intense studies for many years. However, LAWS ARE STILL NOT FACTS, as nothing in science will ever be proven to be fact. Laws are the closest thing to fact that science will reach.