Effects of reduced gravity on the granular fluid-solid transition: underexplored forces can dominate soft matter behaviors

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Effects of reduced gravity on the granular fluid-solid transition: underexplored forces can dominate soft matter behaviors

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Granular media are soft matter systems that exhibit some of the extreme behavior of complex fluids. Understanding of the natural formation of planetary bodies, landing on and exploring them, future engineering of structures beyond Earth and planetary defense all hinge on the ability to predict the complex mechanical behavior of granular matter. As we understand them, these behaviors are linked to the granular fluid to solid transition. In this white paper, we describe issues that emerge for granular systems under reduced gravity and their implications for basic science and space exploration.

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