Why do we call dark matter "dark"?
A)It emits no visible light.
B)We cannot detect the type of radiation that it emits.
C)It emits no or very little radiation of any wavelength.
D)It blocks out the light of stars in a galaxy.

Question

Quizplus · Accepted Answer

Dark matter is called "dark" because it emits no or very little radiation of any wavelength, making it invisible to telescopes and difficult to detect.

Why Do We Call Dark Matter "Dark