Meaning: The galaxy was very big, and it went on for a long way.
Choice of Words: "Stretched" suggests the enormousness of the galaxy, and "vast expanse" reinforces the idea of its boundless size.
Alternative Expressions
The galaxy stretched out, a vast expanse.
Meaning: This means that the galaxy is very big and spread out. It's so big that you can't see all of it at once. It's like a giant blanket that stretches out as far as you can see.
Choice of Words:Galaxy is a group of stars, planets, and other objects that are held together by gravity. Stretched means to extend or reach out over a large area. Vast means very large or extensive. Expanse is a wide, open space. When you put them together, "The galaxy stretched out, a vast expanse" describes the galaxy as a very large, open space that extends far and wide.
The galaxy stretched far and wide, a vast expanse.
Meaning: This means that the galaxy is not only very big, but it also stretches out in all directions. It's like a giant circle that goes on and on forever.
Choice of Words:Far means a long distance away. Wide means having a large width or distance from one side to the other. When you put them together, "The galaxy stretched far and wide" describes the galaxy as extending a long distance in both length and width.
The galaxy stretched out like a vast expanse.
Meaning: This means that the galaxy is so big that it's like a giant open space. It's so big that you can't see all of it at once.
Choice of Words:Like is used to compare two things. Vast means very large or extensive. Expanse is a wide, open space. When you put them together, "The galaxy stretched out like a vast expanse" compares the galaxy to a very large, open space.