I don't know. Wherever it is, God is there - that is all I know about that.
I mean, we all look up and point 'up there' because nobody knows much at all.
I do know that our galaxy, The Milky Way is very, very big. To cross it at 150,000 miles an hour would only take 670 million years (Readers Digest World Atlas 1963). Our galaxy has 400,000,000,000 stars in it and our sun is only an average size star. Even that will only last another 2 billion (maybe 60 million) years before it explodes into something else. Phew! And there are many, many other galaxies and all that is true.
Somehow I believe God made it all and Jesus said to his disciples: "I go to prepare a place for you." You can trust what Jesus says (John 14:1-4).