QUESTION: What does Martian soil feel like? ANSWER from Ted Roush on January 31, 1997: Based on a variety of measurements, both from remote observations and made on the martian surface, it is believed that the soils range from very fine, for example clays or silts, to relatively coarse, for example sand sized, particles. While the atmosphere on Mars is at a lower pressure and of a different composition than the Earths', there is no reason to believe that these contitions would result in any strange properties associated with the surface soils. This means that martian soils would probably not feel much different than the soils on Earth. The finest grain soils would feel similar to baby powder while the sand sized particles would probably feel similar to sand on the Earth.