Is there energy in space?
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. In deep space, the large empty areas between stars and planets, there are no molecules to vibrate. There is no sound there.
What is energy?
What are the main differences between a radio station and DS1?
What is frequency?
What is wavelength?
What are radio waves?
How does DS1's communications system work?