During the war... never had there been a time where humanity needed to unite more than now. And do we decided.... the only solution is.... to nuke the damn place. And that we did. We nuked the planet so much that we ended up literally nuking it out of its orbit.... into another reality. In this one, instead of our lovely moon, there lies a weird planet in the sky... forever reminding us of this ridiculous backstory that I'm writing. Yeah there's a planet in the sky :P