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Dept of Physics

Rubble Pile Asteroids

Most Near-Earth Objects (NEOs) are composed of fracture rock, sometimes so fractured as to be nearer to a granular material than a solid body. These "rubble pile" asteroids are only weakly held together by gravitational forces: a child would be able to throw a ball above the escape velocity!

Publications

  • Karen E. Daniels. Rubble-Pile Near Earth Objects: Insights from Granular Physics Asteroids: Prospective Energy and Material Resources. Springer, 2013. [PDF]


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