Evidence for the existence of dark matter includes___________. A) the observation that Mercury rotates about the Sun faster than Pluto B) the observation that stars near the center of galaxies do not rotate as fast as expected C) the observation that the universe appears to be slowing down D) the observation that the universe is not expanding as fast as predicted by Big Bang Theory

Question

Quizplus · Accepted Answer

The observation that stars near the center of galaxies do not rotate as fast as expected is evidence for the existence of dark matter. This is known as the galaxy rotation problem, and it suggests that there is additional matter present in galaxies that we cannot directly observe, hence the term "dark matter". The other choices listed do not provide evidence for the existence of dark matter.

Evidence for the Existence of Dark Matter Includes___________