The Sun and all the heavenly bodies that orbit around it, including the eight planets, their moons, the asteroids, and comets.
Earth: the Earth (our earth).
The Universe: our universe.
The Developed World (the developed world).
The Industrialized World (the industrialized world).
The Third World (the third world).
The First World (the first world).
Existence.
The Fourth World (the fourth world).
The Second World (the second world).
The Developing World (the developing world).