Given that sound waves need an
atmospheric medium through which to travel, many people are surprised to learn that any
sounds at all can be heard on Mars. The atmospheric pressure on the surface of Mars is
small, amounting to around 0.1 percent of the Earths sea level pressure. But even at
Mars low pressure, acoustic signals within the frequency range of the human ear can
And while the atmosphere of Mars is very different from Earths, consisting mostly of carbon dioxide, there are similarities between these environments that should make the sound data interesting and important.
Hear how some famous people might sound on Mars -- visit The Planetary