Nature is as it is and not as we want it to be but we can only work with what we observe. And that which is observed are scientific facts. These facts are most certainly not the ultimate facts (i.e. as nature really is) but you cannot work with what you have not observed.
Nature is as it is and not as we want it to be but we can only work with what we observe. And that which is observed are scientific facts. These facts are most certainly not the ultimate facts (i.e. as nature really is) but you cannot work with what you have not observed. Yes, but the circular motion of the planets was, in fact, not observed. So either "scientists" don't know how to use the language, or you're playing fast and loose with definitions.