Creation is not taking place now, so far as can be observed. Therefore, it was accomplished sometime in the past, if at all, and thus is inaccessible to the scientific method.
It is impossible to devise a scientific experiment to describe the creation process, or even to ascertain whether such a process can take place. The Creator does not create at the whim of a scientist.
The evolutionary explanation for origins, although impossible either to prove or to test scientifically, is nevertheless defended by its proponents on the basis that it is the only explanation which is naturalistic, not involving the 'supernatural' element of a divine Creator.
