Science is Observing and recording.
It's limitations are what we can Observe and Record with . . . So Technology is sort of the gatekeeper for additional information.
What Science does is observe and records as best it can, then it gets to a point where it can recreate, consistently, a theory. It then makes a Theory from the findings, and publishes documentation about this theory . . . It submits it to other Scientists that are specialists in the particular field for this theory so they , in turn, can test and recreate the same finding . . . These other Peers are trying to actually Disprove this theory . . . If they cannot disprove, then this theory now moves to Scientific Theory . . . All this means is that it is the best explanation of this theory based on Facts and Evidencewe currently have. So it may not be 100% accurate, but it is as close to accurate as we have based on the limit in Technology, and any additional discoveries . . .
It is important to note that a Scientific Theory is merely a place holder, and may not represent 100% knowledge about this thing . . . It is all based on the evidence and facts that are currently testable and can be changed if need be.