File:Erosionsspuren an einem namenlosen Krater in Noachis Terra (27341721731).jpeg
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Deutsch: Diese Aufnahme der vom Deutschen Zentrum für Luft- und Raumfahrt (DLR) betriebenen, hochauflösenden Stereokamera HRSC auf der europäischen Raumsonde Mars Express zeigt einen Teil der Region Noachis Terra im südlichen Hochland des Mars. Der abgebildete Krater ist etwa vier Kilometer tief und hat einen Durchmesser von etwa 50 Kilometern. Er besitzt eine zentrale Vertiefung und Entwässerungstäler am Kraterrand. Diese Strukturen weisen auf das Vorhandensein von Eis im Untergrund hin. Auffallend ist insbesondere ein kleines Feld von schwarzen Dünen im Inneren des Kraters, die vermutlich aus Staub und Sand erodierter vulkanischer Gesteine bestehen, die der Wind ins Kraterinnere verfrachtet hat.
Eine markante Abbruchkante in einer Gesteinsschicht um den Krater zeigt an, wie hoch die Decke des Gesteinsauswurfs war, die sich bei der Entstehung des Kraters durch einen Asteroideneinschlag in der unmittelbaren Umgebung abgelagert hat. Die einstmals über das gesamte Gebiet verteilten Ablagerungen wurden in unmittelbarer Umgebung des etwa 50 Kilometer großen und vier Kilometer tiefen Kraters offensichtlich vor der Abtragung bewahrt. Möglicherweise verfestigte sich das lockere Material im Umfeld des Kraters durch den Einschlag, und der Kraterauswurf legte sich wie eine Decke darüber. Das Kamerasystem HRSC auf Mars Express ist nimmt die Marsoberfläche gleichzeitig in hoher Auflösung, in 3D und mit vier Farbfiltern im sichtbaren Licht für die Farben Blau, Grün und Rot sowie in Wellenlängen des nahen Infrarot auf. Diese aus dem senkrecht auf den Mars gerichteten Nadirkanal und den Farbkanälen erzeugte, kontrastverstärkte Echtfabendarstellung lässt gut Materialunterschiede in der sonst meist sehr eintönigen Marsoberfläche erkennen. Weiter auf: www.dlr.de/dlr/desktopdefault.aspx/tabid-10333/623_read-1... Über Mars Express: www.dlr.de/mars Credit: ESA/DLR/FU Berlin - CC BY-SA 3.0 IGOEnglish: This image, acquired by the German Aerospace Center (DLR) high-resolution stereo camera HRSC on board Europe's Mars Express spacecraft, shows part of the Noachis Terra region in the southern highlands of Mars. The crater pictured is about four kilometers deep and about 50 kilometers in diameter. It has a central depression and drainage valleys at the rim of the crater. These structures indicate the presence of ice underground. What is particularly striking is a small field of black dunes inside the crater, which probably consist of dust and sand from eroded volcanic rocks that the wind has transported into the crater's interior. A prominent ridge in a layer of rock around the crater indicates how high the ceiling of the rock ejection was, which was deposited when the crater was formed by an asteroid impact in the immediate vicinity. The deposits that were once distributed over the entire area were apparently saved from erosion in the immediate vicinity of the crater, which is around 50 kilometers wide and four kilometers deep. It is possible that the loose material around the crater solidified as a result of the impact, and the crater ejecta lay over it like a blanket. The HRSC camera system on Mars Express is simultaneously recording the Martian surface in high resolution, in 3D and with four color filters in visible light for the colors blue, green and red as well as in wavelengths in the near infrared. This contrast-enhanced true-color representation, generated from the nadir channel, which is directed perpendicularly to Mars, and the color channels, makes it easy to see material differences in the otherwise mostly very monotonous surface of Mars. Go to: www.dlr.de/dlr/desktopdefault.aspx/tabid-10333/623_read-1... About Mars Express: www.dlr.de/mars Credit: ESA/DLR/FU Berlin - CC BY-SA 3.0 I.GO |
| Date | Taken on 11 May 2016, 17:19:04 |
| Source | Erosionsspuren an einem namenlosen Krater in Noachis Terra |
| Author | DLR_de |
| Flickr set | Mars Express |
| Flickr tags | topographie; marsexpress; mars; dlr; hrsc; kamera; krater |
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This image was originally posted to Flickr by DLR_de at https://flickr.com/photos/48213136@N06/27341721731. It was reviewed on 11 February 2023 by FlickreviewR 2 and was confirmed to be licensed under the terms of the cc-by-sa-2.0. |
| This media has been released under a free license by the Deutsches Zentrum für Luft- und Raumfahrt (DLR). Their website states: "Where expressly stated, DLR images and videos are covered by a Creative Commons Attribution 3.0 Germany (CC BY 3.0) licence. This licence grants permission to reproduce or distribute the work, to make the work and/or its contents publically available, to alter or edit the work and/or its contents and to make commercial use of the work, provided that you explicitly mention DLR as its source in a clearly legible format. Examples: 'Photo: DLR, CC-BY 3.0', 'Images: DLR, CC-BY 3.0', 'Video: DLR, CC-BY 3.0'." To the uploader: You must provide a link (URL) to the original file and the authorship information if available. |
This file is licensed under the Creative Commons Attribution 3.0 Germany license.
Attribution: DLR, CC-BY 3.0
- You are free:
- to share – to copy, distribute and transmit the work
- to remix – to adapt the work
- Under the following conditions:
- attribution – You must give appropriate credit, provide a link to the license, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use.
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This media was created by the European Space Agency (ESA).
Where expressly so stated, images or videos are covered by the Creative Commons Attribution-ShareAlike 3.0 IGO (CC BY-SA 3.0 IGO) licence, ESA being an Intergovernmental Organisation (IGO), as defined by the CC BY-SA 3.0 IGO licence. The user is allowed under the terms and conditions of the CC BY-SA 3.0 IGO license to Reproduce, Distribute and Publicly Perform the ESA images and videos released under CC BY-SA 3.0 IGO licence and the Adaptations thereof, without further explicit permission being necessary, for as long as the user complies with the conditions and restrictions set forth in the CC BY-SA 3.0 IGO licence, these including that:
See the ESA Creative Commons copyright notice for complete information, and this article for additional details.
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| This file is licensed under the Creative Commons Attribution-ShareAlike 3.0 IGO license. Attribution: ESA/DLR/FU Berlin, CC BY-SA IGO 3.0
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| current | 23:46, 11 February 2023 | | 1,920 × 1,080 (310 KB) | OptimusPrimeBot (talk | contribs) | #Spacemedia - Upload of https://live.staticflickr.com/7391/27341721731_f685eb0fd3_o.jpg via Commons:Spacemedia |
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