File:Artist’s impression of Mars four billion years ago.jpg

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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.
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Source Artist’s impression of Mars four billion years ago
Author ESO/M. Kornmesser/N. Risinger (skysurvey.org)

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Date/TimeThumbnailDimensionsUserComment
current12:54, 8 March 2015Thumbnail for version as of 12:54, 8 March 20156,970 × 5,072 (7.36 MB)Szczureq (talk | contribs)User created page with UploadWizard

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