The Physical State Of Regolith On Airless Bodies, Including Interactions With Lander Missions

Phil Metzger will give an overview of his research into the dynamics of soil on the Moon, asteroids, and Mars, including:  how rocket exhaust disturbs a landing site by moving regolith and by changing the volatiles inventory; how lunar soil becomes compacted through vibration and thermal cycling; and why the regolith is expected to be very porous in the permanently shadowed craters.