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File:Planetoid crashing into primordial Earth.jpg

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Summary

Description
Dansk: En tegners opfattelse af et kastrofalt asteroidenedslag på den unge Jord. Et nedslag af en asteroide med en diameter på 1000 km ville fuldstændig sterilisere Jorden.
Deutsch: Zeichnung eines Einschlags eines sehr großen Asteroiden mit 1000 km Durchmesser auf die Erde.
English: Artist's impression of a 1000km-diameter planetoid hitting a young Earth. Artist's description: "A planetoid plows onto the primordial Earth, during the eons of time when conditions were ripe for the development of life. It is possible that life of kinds unknown to us appeared repeatedly only to be destroyed in collisions like this one which could 'rework' the entire surface. Fortunately the average size of debris declined sharply through geologic time, but the supply of wayward rocks a few kilometers in size is by no means exhausted."
Français : La collision d'un planétoïde avec la terre alors qu'elle était encore toute jeune
Date
Source Donald Davis' official site.
Author Don Davis (work commissioned by NASA)
Permission
(Reusing this file)		 Released into the public domain

Licensing

Public domain This work has been released into the public domain by its author, Donald Davis. This applies worldwide.
In some countries this may not be legally possible; if so:
Donald Davis grants anyone the right to use this work for any purpose, without any conditions, unless such conditions are required by law.

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27 March 1991

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Date/TimeThumbnailDimensionsUserComment
current17:19, 9 October 2010Thumbnail for version as of 17:19, 9 October 20101,431 × 1,083 (116 KB)Cody escouade deltaamélioration de la qualité et enlèvement de la signature.
06:45, 17 February 2007Thumbnail for version as of 06:45, 17 February 20071,431 × 1,083 (155 KB)Shanel{{Information |Description = Artist's impression of the planetoid hitting s young Earth. Artist's description: "'' A planetoid plows onto the primordial Earth, during the eons of time when conditions were ripe for the development of life.

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