If you only want to discuss these matters with astrophysicists, then why are you posting to this thread on Free Republic?
you may be right.
“how can we be so certain about the origin and history of background radiation?” I doubt that you will find physicists who claim certainty on these matters. It is an ongoing study.
But some come on here and are opposed to the research because they OPPOSE PHYSICS. Anybody on here who opposes and has contempt for the scientific method as uselessly corrupt and that they know better ... these people are fools.
That is why I said:
Through experience we have found that these threads usually leads to endless exchanges that have no impact upon each others beliefs. If you are a young earth creation science believer wishing to argue your cause, your post will be read, but in most cases no response will be given.
- paraphrasing Greg Neyman, geologist, M.A., Liberty University