Regardless of what we are given to understand I believe it would be foolish to say to those that believe in a infinite God with a hEavenly realm(which dwells somewhere be it in spirit or flesh)that there is no other life, however for me in my relationship with the Lord, I am not interested in space craft as a heavenly tool, In my experience it would be still a lower level existence, in a material universe.
I also think that is why it is important to dream on God and give Him our thoughts, be it so to you acording to your faith..just because this world will be absorbed into the Heavenly realm on Christ coming does not mean it is home for everyone...smile...Thank God for creating words and dreams..