Question

10. Why does the Andromeda Galaxy show a slight blueshift? * 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.

Answer 1

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 among the provided options. Andromeda is on a collision course with our galaxy, and this motion causes the light from Andromeda to be slightly blueshifted.