There is something called persistent realms. Its like a game where you save before quitting. So if you exploded the moon ,gone to your appartment and woke up, next night you will dream where you are in the appartment and the moon will still be exploded. But it is hard, there is, i think, a tutorial about persistant realms. Experienced lucid dreamers are good at it, others have dream guids that made for them the persistent realm. If you want more information, google persistent realms.