Question

What evidence suggests that the milky way contains dark matter?

Answer 1

There is evidence to suggest that the Milky Way contains dark matter. Astronomers have observed deviations in the velocities of stars orbiting the galaxy and have found extended distributions of dark matter in the outer parts of nearby galaxies.

Step-by-step explanation:

There is ample evidence to suggest that the Milky Way contains dark matter. Astronomers have observed that the velocities of stars orbiting the galaxy do not decrease as expected with the distance from the galactic center. This implies the presence of a tremendous amount of matter in the galactic halo, which cannot be accounted for by the luminous matter. Additionally, measurements of the rotation speeds of outer parts of nearby galaxies have also indicated the presence of extended distributions of dark matter.

Answer 2

We observe clouds of atomic hydrogen far from the galactic center orbiting the galaxy at unexpectedly high speeds, higher speeds than they would have if they felt only the gravitational attraction from objects that we can see.