Science is much more relativistic than thinking in 'true' and 'false', they tend to use 'valid' and 'invalid' instead. Science is looking for truths of course, but you can't prove something to be true, only whether or not a theory is valid for the time being.

The school of thought you are talking about is one of pseudo-scientists, it's from the same nutters that thought of much of the 'What the bleep do we know' philosophy nonsense. (note: philosophy afaik isn't actually interested in figuring out 'truths' or validness of theories.)