Science is anything that can be measured. Spirit is anything that can not be measured. Science is powered by logic and evidence. Spirit is powered by believing and wisdom. No connection. Stop trying to prove or disprove spiritual things with science. The only way we can know anything about the spirit realm is if some spirit chooses to reveal it to us. All the revelations have been collected into a book. You can read it for yourself and decide if you believe it or not. A lot of people take a very dim view of the book and have been telling everybody it says a bunch of things it does not say, so you need to read the book for yourself, putting aside everything you have been told it says. Read a chapter of Proverbs every day. Proverbs has 31 chapters so you can keep your place by just looking at a calendar. When you are comfortable with that, then read the bible from Romans to 2 Thessalonians over and over until you start to remember what it says. That is the part that applies to Christians.