Is it true or false that a scientific theory can never be disproven?

Scientific theories can be disproved. This is a key part of the scientific method, creating hypothesis that can be disproved if they are incorrect. However, you can never really prove a hypothesis - you can find evidence that either fits or doesn't fit. If it doesn't fit the hypothesis needs to be revised or thrown out. If the evidence supports the hypothesis, there may be something that you are missing which may reject the hypothesis.