Can we shout in space

Do you think we can produce an echo when we shout in space?

I don't think so as it wouldn't make any logical sense. You see space is a vacuum which means there is no air. This is why astronauts wear space suits, so surely if you even tried to shout it wouldn't work. So basically no, I don't.

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 and therefore we can't shout in space.

Here is a re-post of an answer I just did about 90 seconds ago that may help you:

Sound waves cannot travel in a vacuum. Additionally, the Rapid decompression can be much more dangerous than vacuum exposure itself. Even if the victim does not hold his breath, venting through the windpipe may be too slow to prevent the fatal rupture of the delicate alveoli of the lungs. Shouting would be "difficult" to say the least. As for the other person, eardrums would probably be ruptured by rapid decompression and he could not hear anyway.

There is no or very little medium for sound to travel through and be transferred to. Besides, you'd be dead before you can shout if you are exposed to the vacuum of space.

Clear skies!

http://www.youtube.com/watch?v=MtXE7iSc6…

You can shout, but it wouldn't make any sound.

Sound waves cannot travel through a vacuum.

you have two questions
question one:
yes you can shout but the sound won't travel
question two
no echo