Many people are like that. My bible studies came basically from Finis Jennings Dake. He believed that heaven was another planet. Earlier in my religious life I believed that we all came from Mars and that Mars was the kingdom (planet) given to Satan (or Lucifer) before he rebelled. This fits in with the "pre-Adamite" belief of Dake and others. With "war in heaven" (or the heavens) as described in Revelation this all came to an end and that mean old Devil was watching the new humans to see how many of them he could get away from God. Also, "demons" are bodiless spirits left over from the Mars rebellion and they bother us because they want a body again. Put this all together in our modern world and you have a basic mythical system that helps you explain the things that we do not know. I'm glad I woke up and got out of it all.

As for heaven being a planet, I've listened to late night radio talk shows where the subject is something large like a planet and it is slowly headed our way. I take this as an exaggeration of scriptures claiming that heaven came down to earth or something. Armageddon headed our way soon. It's nonsense but it is all real.