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What separates the galaxies from each other?

Answer 1

Interstellar Medium

You already know that space is empty. The interstellar medium, although complex, is essentially composed of hydrogen gas, helium, and a few minor "trace" elements.

I apologize for copying text from Wikipedia, but I had to do so because I have an exam coming up. According to Britannica, interstellar matter typically occurs in cloudlike concentrations. In astronomy, interstellar medium (ISM) is the matter that exists in the space between star systems in a galaxy. This matter includes gas in ionic, atomic, and molecular form, as well as dust and cosmic rays.

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Answer 2

Hailey Alvarez

The vast distances between galaxies are primarily empty space. Gravitational forces influence their positions within the cosmic web.

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Answer from HIX Tutor

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.