Rubble Piles

Some articles on piles, rubble, rubble piles, rubble pile:

Asteroid - Characteristics - Composition
... Most of the smaller asteroids are thought to be piles of rubble held together loosely by gravity, though the largest are probably solid ... Some asteroids have moons or are co-orbiting binaries Rubble piles, moons, binaries, and scattered asteroid families are believed to be the results of collisions that disrupted a parent asteroid ... So far, every asteroid with moons has turned out to be a rubble pile, a loose conglomeration of rock and metal that may be half empty space by volume ...
Asteroid Impact Avoidance - Collision Avoidance Strategies
... solid objects that can be directly pushed, but probably not effective against loosely aggregated rubble piles ... Many NEOs are "flying rubble piles" only loosely held together by gravity, and a deflection attempt might just break up the object without ... Against some rubble piles, a nuclear bomb may be delivered to it and dock with it, then it could penetrate to its center, and explode sending fragments in all directions, thus ...
Rubble Pile
... In astronomy, a rubble pile is an object that is not a monolith, consisting instead of numerous pieces of rock that have coalesced under the influence of gravity ... Rubble piles have low density because there are large cavities between the various chunks that make them up ... Rubble piles form when an asteroid or moon (which may originally be monolithic) is smashed to pieces by an impact, and the shattered pieces subsequently fall back together, primarily due to self-gravitation ...

Famous quotes containing the words piles and/or rubble:

    Immortal glories in my mind revive,
    And in my soul a thousand passions strive,
    When Rome’s exalted beauties I descry
    Magnificent in piles of ruin lie.
    Joseph Addison (1672–1719)

    We often have need of a profound philosophy to restore to our feelings their original state of innocence, to find our way out of the rubble of things alien to us, to begin to feel for ourselves and to speak ourselves, and I might almost say to exist ourselves.
    —G.C. (Georg Christoph)