sandyRoe - "... John 14:2 clearly illustrates that the Cosmos if full of alien life. In my father's house there are many mansions..."
Your quote is from the King James Bible. Other interpretations are available. For example, the Weymouth New Testament says, "In my Father's house there are many resting-places.". In the New Living Translation bible it says, "There is more than enough room in my Father's home."
http://biblehub.com/john/14-2.htm
You're being dishonest when you say that John 14 is talking about extraterrestrial life. It is doing no such thing. Jesus was attempting to comfort his disciples with talk of an afterlife - not describing the possibility of life on other planets.