How does the interstellar medium obscure our view of most of the galaxy?
A) Hydrogen gas produces so much visible light that the interstellar medium is opaque, blocking our view of anything beyond it.
B) Dust reflects most light from distant regions of the galaxy back towards the source.
C) Molecules in the interstellar medium absorb all wavelengths of light.
D) The small mixture of dust grains in the interstellar medium absorbs visible light.
E) all of the above

Question

Quizplus · Accepted Answer

The small mixture of dust grains in the interstellar medium absorbs and scatters visible light, making it difficult to see through to other parts of the galaxy.

How Does the Interstellar Medium Obscure Our View of Most