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
Hypothesis: The new galaxy is moving away from the Milky Way galaxy due to the expansion of the universe.
One way to test this hypothesis is by using the redshift phenomenon. The astronomer can analyze the spectrum of light emitted by the galaxy and look for the redshift, which indicates that the galaxy's light has been stretched to longer wavelengths as it moves away.