Today's astronomy is not just studying the position and movement of the sun, moon, and stars in the sky, but also the changes in the stars and the evolution of the universe. The exact restatement of this passage is:. ['Modern astronomy only studies changes in the stars.', 'Modern astronomy not only studies the laws of the stars and their internal changes, but also the evolution of the universe.', 'Modern astronomy only studies the position and movement of the sun, moon and stars in the sky.', 'Modern astronomy is a comprehensive subject.']