Hypothesis: The newly discovered galaxy is moving away from the Milky Way, indicating an expanding universe. To test this hypothesis, the astronomer can analyze the galaxy's redshift by measuring the wavelengths of light emitted from the galaxy; if the light is redshifted, it would confirm that the galaxy is receding from the Milky Way.
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)
1 answer