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DescriptionMartian north polar cap.jpg |
English: The Mars Global Surveyor (MGS) Mars Orbiter Camera (MOC) acquired this image of the Martian north polar cap in early northern summer. The picture was acquired on March 13, 1999, near the start of the Mapping Phase of the MGS mission. The light-toned surfaces are residual water ice that remains through the summer season. The nearly circular band of dark material surrounding the cap consists mainly of sand dunes formed and shaped by wind. The north polar cap is roughly 1100 kilometers (680 miles) across.
Ελληνικά: Ο Βόρειος Πόλος του πλανήτη Άρη, φωτογραφημένος από τη διαστημοσυσκευή Mars Global Surveyor το 1999. Όταν λήφθηκε η φωτογραφία στο βόρειο ημισφαίριο του πλανήτη ήταν καλοκαίρι, και έτσι ο πάγος που παρατηρείται είναι πάγος νερού, που βρίσκεται κάτω από ένα στρώμα πάγου διοξείδιου του άνθρακα, που το καλοκαίρι εξατμίζεται. Η σκοτεινή περιοχή γύρω από τον πάγο είναι μια "θάλασσα" από άμμο που περιβάλλει τον Βόρειο Πόλο.
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Date | The picture was acquired on March 13, 1999 | ||||||
Source | |||||||
Author | NASA/JPL/Malin Space Science Systems | ||||||
Permission (Reusing this file) |
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This image or video was catalogued by Jet Propulsion Laboratory of the United States National Aeronautics and Space Administration (NASA) under Photo ID: PIA02800. This tag does not indicate the copyright status of the attached work. A normal copyright tag is still required. See Commons:Licensing. Other languages:
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current | 09:30, 18 September 2011 | 1,368 × 1,319 (1 MB) | commonswiki>Badseed | uploading full resolution |
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