to add to what John P said about:
"Just keep in mind that back in the day, John P, the sun revolving around the earth was a well-known scientific fact."

No... it was a theory...they thought it was a fact. They had little means to test it except simple observation. If you wish to say that the opposite is thus "only a theory", fine... but it is a tested theory, and has pretty solid footing.

The belief that the Bible is the 'inspired word of God' is also a theory, since it WAS put to parchment & paper by men! This theory is not really 'testable'... and we know that many, many things written by men are patently false and invented.

There is a good reason why people say "I 'believe' in God".... belief MEANS it cannot be proved.