Theoretical science is theories based on evidence that has been interpreted. It's not "stone-cold hard facts", as you put it in a different thread. It's theory and closely connected with and often intermingled with philosophy or even ancient religious ideas.
Hard science, however, is hard facts. An example of this could be "1+1=2", where there is no interpretation involved.
Now, some scientists argue against the distinction between theoretical and hard science. However, it gets convoluted and somewhat ironic, because again, it becomes a philosophical debate, and not a debate about science, properly speaking.
In other words, how the word "science" is thrown around in our day, is often more correctly "theoretical science", which is heavily influenced by philosophy. I can add to this that the area of theoretical science is progressive, meaning it's changeable, whereas hard science is fixed, it's unchangeable. God's Word is also unchangeable, which is why it agrees with hard science, but not always with the various theories in the field of theoretical science.
