Tonight's Moon

If the Earth is a Realm is the Moon a Realm too? Mars? All Realms? Asking for a friend who's favorite word is Realm! If the Moon is inside the Firmament then how do you travel outside the Dome? Anti-gravity or Electrogravitics or non-gravitational, gravity control propulsion? Will that get you outside of the Firmament...Outside of the Dome? I hear it's water but that's no biggie...Craft fly in and out of our water here on Terra/Earth all the time...But back to the Realms...Are some of these planets/places actually Realms? Or located in different Dimensions or maybe even actually inside the Dome...Or are they other Continents that we are not allowed to know about? See what I have to deal with every morning when I'm drinking my coffee?