The universe is a large place.
It contains lots of stuff.
Andromeda is our nearest large galaxy.
It is a spiral galaxy.
Our galaxy is called the Milky Way.
It is also a spiral galaxy.
The nearest star is Proxima Centauri.
It is a relatively-small star.
The Sun is our star, the center of our solar system.
We live on planet Earth.
This planet is particularly nice.
Are we?
The Sun is much larger than the Earth.
The Sun is much hotter than the Earth.