How do intergalactic and extragalactic space differ from each other?

We define the meaning between these two descriptions of space

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Intergalactic describes the space between galaxies. Image Credit: NASA

Intergalactic describes the space between galaxies. Image Credit: NASA

Asked by Hannah Green

Although we can use both intergalactic and extragalactic to describe areas of space, they do have slightly different definitions. In general we use the word intergalactic when talking about a place in the universe that is located somewhere between two or more galaxies. In comparison to this we can use the word extragalactic to describe anything that can be classified as being outside of the galaxy we reside in, the Milky Way.

Answered by Zoe Baily from the National Space Centre

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