God isnt invented and its a simply a word to represent something that cannot be explained. We cant explain the mechanics of life so we name it something and its simpe as that. If god could be invented the idea of "GOD" would lose all meaning.

Technically thats what religion is, making new gods, and people have been doing that for years already. I personaly do not believe in a god, or gods, or an "after" life. I believe the mechanics of our world as a whole are impossible to understand because that "understanding" (given that it even EXISTS) cannot be perceived while our physical body limits our senses.

And about space travel and our ability to move to other planets. First of all, moving to other "solar systems" would be extremely difficult if not impossible. A solar system typically refers to a star surround by "planets" or celestial bodies. The closest star (potential solar system) is MANYYY light years away, a distance impossible to achieve regardless of technological capability because of infinite mass. You would simply deteriorate moving that quickly and even if you didn't you'd die somehow else for sure.

The funny thing is given the existence of a non physical world how would you define the speed at which a spirit moves. Does "speed" even exist in that plane? These questions are impossible to answer, prove, or disprove, which is my point entirely; the questions are compeltely paradoxal and insane and IMPOSSIBLE TO PERCEIVE, or to make any of sense of (because that "understanding" cant exist in this world)