"The scientific method sidesteps the concept of proof in the mathematical sense. This doesn’t mean science doesn’t employ logical deduction. Scientific results are not logical deductions. Science relies on consistency with observations: information that comes to us from outside of ourselves. Observations are generally taken as fact. In science, the only thing that can be proven with certainty is inconsistency with observations. Theories that fail to predict future results are in need of modification and are rejected as is. Science provides ideas which are testable, that is, verifiable against observation. In short, science comes up with ideas that seem to work and, whenever possible, eliminates those that don’t."But even that is extremely important.
All too often you'll hear supposed scientists insisting that their theory is correct despite the fact that it's failed to accurately predict the future, which means, been refuted by observation.