File:Ice-coated crater ESA21533715.jpeg
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[edit]DescriptionIce-coated crater ESA21533715.jpeg |
English: This view may resemble a snowy scene observed from an airplane flying over Earth’s mountain ranges, but it is in fact a spectacular scene captured by the CaSSIS camera onboard ESA’s ExoMars Trace Gas Orbiter, or TGO, as it flew over the ice-coated Korolev crater on 21 August 2019. Korolev is an 80 km-wide crater in the northern polar regions of Mars that contains a massive ice sheet in its centre, the third largest exposed ice sheet on Mars, after its polar caps. The beauty of this ice sheet was captured in its entirety in a stunning mosaic of images taken by the HRSC camera on ESA’s Mars Express over the course of its 15-year – and counting – odyssey at the Red Planet. TGO also captured a beautiful slice of Korolev crater in April 2018, which was one of the first images the spacecraft sent back to Earth after arriving in its science orbit around Mars. In the image presented here, the CaSSIS camera reveals the detail of the crater’s south-eastern wall, which was illuminated at sunrise during the start of summer in the northern hemisphere. The walls of the craters at this latitude get fewer hours of sunlight on average throughout the year, so they have permanent deposits of water ice. In addition, at this time of year, carbon dioxide ice is still present on the surface left over from the seasonal cap that covers the polar regions during winter, contributing to the appearance of snow-covered mountain peaks. Compare with this image taken in the same region a few months later, after much of the carbon dioxide ice has receded. The image is centred at 164.90ºE/72.02ºN and was taken on 21 August 2019. The scale is indicated on the image. |
Date | 20 December 2019 (upload date) |
Source | Ice-coated crater |
Author | ESA/Roscosmos/CaSSIS |
Activity InfoField | Space Science |
Mission InfoField | ExoMars |
Set InfoField | Space Science image of the week |
Licensing
[edit]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/Roscosmos/CaSSIS, CC BY-SA IGO 3.0
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Date/Time | Thumbnail | Dimensions | User | Comment | |
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current | 12:49, 7 June 2020 | 6,309 × 1,427 (7.08 MB) | OptimusPrimeBot (talk | contribs) | #Spacemedia - Upload of https://www.esa.int/var/esa/storage/images/esa_multimedia/images/2019/12/ice-coated_crater/21533704-1-eng-GB/Ice-coated_crater.jpg via Commons:Spacemedia |
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Orientation | Normal |
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Horizontal resolution | 100 dpi |
Vertical resolution | 100 dpi |
Software used | Adobe Photoshop 21.0 (Macintosh) |
File change date and time | 12:16, 10 December 2019 |
Color space | sRGB |
Date and time of digitizing | 11:50, 7 October 2019 |
Date metadata was last modified | 13:16, 10 December 2019 |
Unique ID of original document | xmp.did:f0d6b338-03ba-42d2-86bb-3628a858bf25 |