File:Artist’s impression of Mars four billion years ago (eso1509a).tif

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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.
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Source https://www.eso.org/public/images/eso1509a/
Author European Southern Observatory / M. Kornmesser

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Date/TimeThumbnailDimensionsUserComment
current15:40, 19 March 2021Thumbnail for version as of 15:40, 19 March 20217,683 × 4,717 (35.43 MB)Junior Jumper (talk | contribs)=={{int:filedesc}}== {{Information |description={{en|1=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.}} {{fr|Cette vue d'artiste montre ce à quoi de...

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