Question

An astronomer discovered that the gravitational attraction between two stars in our galaxy is increasing. which of the following is most likely explanation.

A. the size of the stars may be decreasing.
B. One of the stars may be starting to rotate faster.
c. The distance between the two stars may be decreasing.
D. The magnetic field of one of the stars may be getting stronger.

Answer 1

C. The distance between the two stars may be decreasing

Answer 2

D The gravitational force between the Milky Way and Andromeda galaxies has produced an acceleration that is causing the two galaxies to be moving towards each other faster than the space between them is expanding as calculated by Hubble's law.