Question

Why does the Andromeda Galaxy show a slight blueshift?
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1 point
It is moving away Earth but will never collide with the Milky Way Galaxy.
It is moving towards Earth but will never collide with the Milky Way Galaxy.
It is moving away from Earth and will collide with the Milky Way Galaxy.
It is moving towards Earth and will collide with the Milky Way Galaxy.

Answers

GPT-4o mini
The Andromeda Galaxy shows a slight blueshift because **it is moving towards Earth and will collide with the Milky Way Galaxy.**

This is the correct answer because the gravitational interaction between the two galaxies is causing them to move closer to each other, and they are expected to eventually merge in approximately 4.5 billion years.

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