Which of the following best summarizes what we mean by dark matter?
A)matter that we have identified from its gravitational effects but that we cannot see in any wavelength of light
B)matter that may inhabit dark areas of the cosmos where we see nothing at all
C)matter consisting of black holes
D)matter for which we have theoretical reason to think it exists,but no observational evidence for its existence

Question

Quizplus · Accepted Answer

Dark matter refers to matter that we cannot see but we can infer its existence from its gravitational effects on visible matter. It does not emit or absorb any form of electromagnetic radiation, making it invisible to telescopes.

Which of the Following Best Summarizes What We Mean by Dark