Running Fast With a Moon

At the equator, the diameter of Mars was 6794.4 km. That means the circumference was 21,334.4 km. A day on mars was 24.62 hours, so at most he would have to be running at 866.54 kph across the surface of Mars. 240.7 meters a second. Three quarters of the speed of sound. That figure was assuming he ran constantly, without sleeping or resting. The gravity was only a third that of Earth, but even so, was it humanly possible to run that fast?

"He appears to be standing still right now...?" Funnier said.

"Yes..." Houston replied. "That's what's so frightening. This creature can run even faster..."