“IF #1 AND #2 ARE TRUE,
what’s problem with detection?”
1. Detect with what? Scientific instruments melt below a certain depth.
– Do they know where the niraya is? At what depth? At what location? Earth is huge.
2. There are MANY things that scientists do not understand. Don’t look to science for answers to these types of questions.
– Do they even know how “vision” happens? No.
– See “How Do We See? – Role of the Gandhabba”
3. The “hell beings” are born via kammic energy. They do not have bodies similar to us. You are thinking in terms of our bodies. Our bodies would not last a millisecond in a niraya. They are born with “bodies” that can withstand such heat enough to feel suffering.
– Laws of kamma and how kamma vipaka give rise to “bodies” in various realms are discernible only to a Buddha. I have added a sutta reference (Acinteyya Sutta) in bullet #3 of post in #2 above.
4. These are questions about things average humans do not perceive. One can waste a lifetime looking into these issues.
– However, it is good to realize the above to dispel doubts. I am glad that you asked the question in that sense. But such doubts cannot be dispelled by looking at “verification” by science.
– Also, see “Dhamma and Science – Introduction”