[laserDinosaur]

Since this is made from splicing together all the photos, I assume then that the sounds are just being faked?

[Cushman]

Yes, the sound is fake. There is sound on Mars, though very quiet from our perspective, but the rover (and especially the lander) doesn't have a microphone.

I did find this totally cool video that uses the status tones the lander sent back to earth, though: http://www.space.com/17110-screaming-down-to-mars-how-curios...

[laserDinosaur]

Ha, I guess that makes sense.

[ceejayoz]

I think they're taken off NASA's animation of the landing process. The rover has no microphone on board.