I believe there is sound in space. In order to not have sound you would need a vacuum. Space is NOT a vacuum so sound should travel. Now can it travel so that anyone can here it? No. Could technology be developed to make it so it could be picked up or reproduced? Who knows. We know almost nothing about dark matter and even less about dark energy and both are abundant in space . Could sound effect either of them in some way that could be picked up and converted back to normal sound? Guess will have to wait for science to answer that one.
Um... Are you drunk/high/ignorant?
Space is a near-vacuum, for the most part. For sound to travel, the molecules that make up our environment (the atmosphere, the ocean) collide with each other, forming shockwaves from the impact. Our ears interpret the pressure waves as sound. I guess you could hear something if the escaping gases from an explosion impacted your fighter's hull or something, and you would definitely hear something if you collided with another ship, but that's it. IIRC, dark matter is simply the matter that we can't see that makes up a large part of the mass in our universe. I just looked it up on Wikipedia, and dark matter is simply the matter that we can't observe for various reasons, but we know exists because of its gravitational influence. You're saying that sound could affect neutrinos and such, which is incorrect because
neutrinos are passing through you right now. If shockwaves affected them you would have trillions of bullet-holes in you every second.
This whole discussion is moot because sound is almost never defined as anything other than shockwaves in a gas or liquid or solid.