Hypothesis: The new galaxy is moving away from the Milky Way galaxy due to the observed redshift in its spectrum.
Testing the hypothesis: The astronomer can conduct a spectroscopic analysis of the galaxy's light to determine its redshift or blueshift, which would indicate whether it is moving away from or towards the Milky Way.
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.
short please
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