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English: K/T extinction event theory. An artist's depiction of the asteroid impact 65 million years ago that many scientists say is the most direct cause of the dinosaurs' disappearance [1].
Source http://solarsystem.jpl.nasa.gov/multimedia/display.cfm?IM_ID=2306
Author Don Davis/NASA

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Public domain This file is in the public domain in the United States because it was solely created by NASA. NASA copyright policy states that "NASA material is not protected by copyright unless noted". (See Template:PD-USGov, NASA copyright policy page or JPL Image Use Policy.)
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current21:13, 10 August 2011Thumbnail for version as of 21:13, 10 August 2011500 × 629 (258 KB)Razorbliss{{Information |Description={{en|K/T extinction event theory. An artist's depiction of the asteroid impact 65 million years ago that many scientists say is the most direct cause of the dinosaurs' disappearance [http://www.nsf.gov/news/special_reports/dino/

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