On Mars nobody can hear you scream. Is that really true? And if so, why? Plus we ask, can we mix spider and human DNA to make Spiderman?
Mars has an atmosphere mostly of CO2 at a pressure 6.5 millibars (Earth 1000 millibars) the speed of propagation of sound is little different in CO2 compared to the familiar O2/N2 mix that we have on Earth so pitch should be little affected.