Aren't all things just what we perceive? Including scientific data and theory?
That which exists beyond what we perceive intuitively is great, and is the reason why Physics exists, to describe the nature of the Universe.
We can only know objectively what is first perceived intuitively for all of science, including Physics, must create a theory intuitively before it can be tested objectively. Physics cannot possibly describe what is beyond intuition because as soon as a concept is formed to describe something we formerly were unaware of intuition (our intellect) has grasped some thing. If it can be conceived of it has been intuited...at some point.
Can we intuit things beyond what we can conceive? Perhaps. I'd even say probably so. But no science can test or describe what is beyond conception. Can it?
Obviously not. BUT, science can describe that which we can't INTUITIVELY sense, such as gamma radiation, relativity, and a myraid number of things...