Random question: Is it silent on Mars? I'm looking at this picture and can't help but wonder what it sounds like. Just curious if Martian weather tends to be windy or calm.
> Is it silent on Mars?
> Just curious if Martian weather tends to be windy or calm
Considering the propensity for dust storms I'm going to say windy. But the atmosphere is thinner, so this makes it harder to hear? Or quieter?
> But the atmosphere is thinner, so this makes it harder to
> hear? Or quieter?
Given that the speed of sound is roughly independent of pressure, and keeping all other variables equal, as $\rho$ decreases, $I$ also decreases. So yes, on Mars, sounds are much quieter.
Sources: http://physics.stackexchange.com/questions/672/what-is-the-r...
Edit: Correction, twice, one was also sent on Phoenix but due to a design defect it was not used: http://en.wikipedia.org/wiki/Phoenix_(spacecraft)#Mars_Desce...