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Reference Terms
from Wikipedia, the free encyclopedia

Impact event

Impact events are caused by the collision of large meteoroids, asteroids or comets (generically: bolides) with Earth and may sometimes be followed by mass extinctions of life.

Note:   The above text is excerpted from the Wikipedia article "Impact event", which has been released under the GNU Free Documentation License.
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Earth & Climate News
October 21, 2016

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updated 12:56 pm ET