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=== Cometary Collisions === | === Cometary Collisions === | ||
Bodies in the Oort cloud are occasionally perturbed by collisions or by the influence of nearby stars into orbits which pass near the star; these form the visible comets. | Bodies in the Oort cloud are occasionally perturbed by collisions or by the influence of nearby stars into orbits which pass near the star; these form the visible comets. | ||
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+ | === Meteoroid === | ||
+ | Meteoroids are significantly smaller than [[planetoid]]s, ranging in size from small grains to [[meter]]-wide objects. Objects smaller than this are classified as micrometeoroids or space dust. Most are fragments from [[comet]]s or [[asteroid]]s, while others are collision impact debris ejected from [[planet]]s. | ||
== References & Contributors ([[Sources]]) == | == References & Contributors ([[Sources]]) == |