File:Eso1509a - Mars planet.jpg

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Original file(7,683 × 4,717 pixels, file size: 6.9 MB, MIME type: image/jpeg)
Description
English: This artist’s impression shows how Mars may have looked about four billion years ago. The young planet Mars would have had enough water to cover its entire surface in a liquid layer about 140 metres deep, but it is more likely that the liquid would have pooled to form an ocean occupying almost half of Mars’s northern hemisphere, and in some regions reaching depths greater than 1.6 kilometres.
Français : Cette vue d'artiste montre ce à quoi devait ressembler Mars voici quatre milliards d'années. La toute jeune planète devait renfermer suffisamment d'eau liquide pour que l'intégralité de sa surface en soit couverte, sur une hauteur d’environ 140 mètres. Il semble plus probable toutefois que l'eau liquide se soit constituée en un océan occupant près de la moitié de l'hémisphère nord de la planète. En certaines régions, la profondeur de cet océan pouvait dépasser 1,6 kilomètre.
Date
Source Artist’s impression of Mars four billion years ago
Author ESO/M. Kornmesser
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current07:38, 11 March 2015Thumbnail for version as of 07:38, 11 March 20157,683 × 4,717 (6.9 MB)ComputerHotline (talk | contribs){{Information |Description={{en|This artist’s impression shows how Mars may have looked about four billion years ago. The young planet Mars would have had enough water to cover its entire surface in a liquid layer about 140 metres deep, but it is mor...
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