Question

Use the scenario to answer the question .An astronomer discovers a new galaxy using a telescope. The astronomer wants to investigate how the galaxy is moving relative to the Milky Way galaxy.

In one or two sentences, make a hypothesis about the movement of the galaxy and explain at least one way to test the hypothesis. make it seem like a7th grader wrote it

Answer 1

I think the new galaxy might be moving away from the Milky Way because galaxies usually do that due to the expansion of the universe. To test this, we can look at the light coming from the galaxy and see if it's redshifted, which would mean it’s moving away from us!