In the ocean, sound travels because of the small elasticity of the water, and because of the elasticity of the air molecules that are trapped within the water. Sound is vibration in the water.

Light and other particles, traveling through space in waves, are vibration in space. Even material, being composed at its micro-levels entirely of electromagnetic particles, are essentially waves in space, even though they act on each other much more strongly than simple light acts on itself.

When is science going to let us in on the secret that space is essentially an elastic solid, made up of all kinds of electromagnetic particle/wave systems, that are slightly out of "phase" with each other. The so-called empty space of space is really filled with an indefinite number - and maybe infinite number - of parallel universes. Out-of-phase means that they have a harmonic vibration of a kind that is only relative and apparent to the particular universe that they are a part of.

A hundred years ago, people KNEW that space was not empty, that the universe was filled with this kind of a medium. It was called the ether, often spelled aether. Just like there is a gigantic covert operation going on regarding how the money system works, even so there has come into being a gigantic covert operation regarding what we call science.

There is basically one reason for this science covert operation - the one that intentionally ignores all kinds of science - and that is to make scientists look greater than they really are in the eyes of other people. It is being used to focus the minds of the people away from the God of the universe, and onto the stupid scientists of our modern age, scientists who haven't a clue about how to keep themselves alive longer than the general age, but who want to look like gods among met so that they can live the good life.

Do you want to be like a god in this life? John 10:34-36 (NIV 1984):
34 Jesus answered them, “Is it not written in your Law, ‘I have said you are gods’? 35 If he called them ‘gods,’ to whom the word of God came—and the Scripture cannot be broken— 36 what about the one whom the Father set apart as his very own and sent into the world? Why then do you accuse me of blasphemy because I said, ‘I am God’s Son’?"

For the scientist who forgets God, Psalm 82:6,7 (NIV 1984):
6 “I said, ‘You are “gods”;
you are all sons of the Most High.’
7 But you will die like mere men;
you will fall like every other ruler.”