Sound waves in the interstellar medium
A)travel so slowly that they are undetectable.
B)can travel through the gas, but the very low density of the interstellar medium makes them inaudible.
C)can travel through the halo interstellar medium but not the disk of the galaxy.
D)cannot travel through the gas.
E)travel extremely quickly and are therefore very loud.

Question

Quizplus · Accepted Answer

Sound waves can travel through the interstellar medium, but the low density of the medium makes them inaudible.

Sound Waves in the Interstellar Medium