(IMAGE)
Caption
Researchers tested the effect of different gravities on various granular materials, such as simulated regolith and sand, at the International Space Station. By understanding how gravitational changes affect granular flow of the materials, they can design better landers and rovers for extraterrestrial exploration. For each test, materials were placed in hourglass-shaped containers and flipped more than 400 times over seven hours at different gravities. The images here show the materials exposed to microgravity, or 0.063 G.
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Yokohama National University
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