Because space is a vacuum
Sound waves need something to travel through for you to actually be able to hear it. On earth, there's oxygen and stuff. That's not in space. So there's nothing for the sounds to travel through. At least that's what I remember from the lesson we had on Wednesday. I think that's right.
Feel free to prove me wrong, anyone
Sound travels in waves like light or heat does, but unlike them, sound travels by making molecules vibrate. So, in order for sound to travel, there has to be something with molecules for it to travel through. On Earth, sound travels to your ears by vibrating air molecules.
There was once upon a time a question along the lines of
Why can light travel through a vacuum if it's a wave?
And it was theorized that there was an "etherious" material that the light waves traveled through. A simple experiment was done with focused light and diffraction that determined that there was no such thing as this etherious material. But then how does a wave propagate through nothing? And then someone came up with the brilliant idea that light is a wave and particle, so the light waves are carried by the light particles in a manner of speaking.
Yeah
I think my teacher said that if you're close enough, you can hear the other person, but not if you're far away.
Again, feel free to prove me wrong
Fun fact. The speed at which the bodies shatter is unrealistic; shock travels through a [solid] body at the same speed at which sound does. Sound does not travel through a planet in less than a second and neither can a shockwave from the impact.
What if the planets were moving faster than the speed of sound when they collided? Wouldn't the damage as they tore into each other travel at a speed proportional to the speed they were traveling?
I'm 98.6% sure that the shock front would still "bunch up" where the bodies met if they were moving through each other faster than sound would through the medium.
Hey guys, guess what? As amazing as Star Wars is, it is still a science fiction movie, and a space opera at that. It doesn't have to conform exactly to the laws of physics. If it did, hyperspace travel wouldn't exist. Having no sound in the space battles would be incredibly boring, so they added sound to make it more exciting.
As an added note, Lucas claims that the Siege of Coruscant scene in Episode III took place in the upper atmosphere, and not actually in orbit, therefore there was some air to allow the transmission of sound.
Firefly was also a hard sci-fi series, which means it adhered more closely to the laws of physics as we know them. Which is not to say that Firefly is not amazing, it is amazing, and Nathan Fillion is a god.
I wanna know why sounds doesn't travel in space
Sound waves need something to travel through for you to actually be able to hear it. On earth, there's oxygen and stuff. That's not in space. So there's nothing for the sounds to travel through. At least that's what I remember from the lesson we had on Wednesday. I think that's right.
Feel free to prove me wrong, anyone
Why can light travel through a vacuum if it's a wave?
And it was theorized that there was an "etherious" material that the light waves traveled through. A simple experiment was done with focused light and diffraction that determined that there was no such thing as this etherious material. But then how does a wave propagate through nothing? And then someone came up with the brilliant idea that light is a wave and particle, so the light waves are carried by the light particles in a manner of speaking.
I think my teacher said that if you're close enough, you can hear the other person, but not if you're far away.
Again, feel free to prove me wrong