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,
(2 points)
Hypothesis: The new galaxy is moving either towards or away from the Milky Way galaxy.
One way to test the hypothesis would be to measure the redshift or blueshift of the light emitted by the new galaxy. If the light is shifted towards longer wavelengths (redshifted), it would suggest that the new galaxy is moving away from the Milky Way, while a shift towards shorter wavelengths (blueshifted) would indicate movement towards the Milky Way.
In one sentence
Hypothesis: The new galaxy is moving towards the Milky Way galaxy.
One way to test the hypothesis would be to measure the Doppler shift of the light emitted by the new galaxy; if the light is blueshifted, it would imply movement towards the Milky Way.