Soubor:Roter Kamm impact crater ESA22104135.jpeg
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English: On Asteroid Day, the Copernicus Sentinel-2 mission takes us over the Roter Kamm impact crater in Namibia. The circular shape of the crater rim can be seen in the left of the image, just below the centre. Zoom in to view this image at its full 10 m resolution. The Roter Kamm impact crater is located in the Tsau ǁKhaeb National Park, also known as the Sperrgebiet, a diamond mining area in the Namib Desert, in southwest Namibia. According to geologists, the crater was formed by a meteorite around the size of a large vehicle that collided with Earth approximately 5 million years ago. The crater has a diameter of 2.5 km and is around 130 m deep. It is clearly visible in the midst of the rust-red dunes, with its rims rising some 40 to 90 m above the surrounding plain. Its floors are covered by sand deposits at least 100 m thick. Meteorites and asteroids have influenced Earth’s development, as seen by the millions of impact craters scarring our world. Each year on 30 June, the worldwide UN-sanctioned Asteroid Day takes place to raise awareness about asteroids and what can be done to protect Earth from possible impact. The day falls on the anniversary of the Tunguska event that took place on 30 June 1908 in Siberia, the most harmful known asteroid related event in recent history. Over the last two decades, ESA has been performing detection and analysis of asteroids whose orbits bring them close to Earth, known as near-Earth objects (NEOs). There are an estimated 40 000 000 NEOs out there larger than 10 m – the threshold above which damage on the ground could happen. ESA is also developing the Hera mission, which will be the first to test the effectiveness of asteroid deflection, as it flies to the Didymos binary system that will soon be impacted by NASA’s DART. If an asteroid is detected that is on collision course with Earth, these missions mean we will be more prepared to act. Follow the latest asteroid news and updates today at 12:00 CEST on Asteroid Day TV. Hosted by award-winning science and space journalist Richard Hollingham, the programme will include features and discussions with leading asteroid experts. ESA’s Asteroid Day programme is available in six languages, all available to replay. |
Datum | 30. června 2020 (upload date) |
Zdroj | Roter Kamm impact crater |
Autor | European Space Agency |
Activity InfoField | Observing the Earth |
Mission InfoField | Sentinel-2 |
System InfoField | Copernicus |
This file has an extracted image: Roter Kamm impact crater ESA22104135 (cropped).jpeg. |
Licence
This image contains data from a satellite in the Copernicus Programme, such as Sentinel-1, Sentinel-2 or Sentinel-3. Attribution is required when using this image.
Uveďte autora: Contains modified Copernicus Sentinel data 2020
Attribution
The use of Copernicus Sentinel Data is regulated under EU law (Commission Delegated Regulation (EU) No 1159/2013 and Regulation (EU) No 377/2014). Relevant excerpts:
Free access shall be given to GMES dedicated data [...] made available through GMES dissemination platforms [...].
Access to GMES dedicated data [...] shall be given for the purpose of the following use in so far as it is lawful:
GMES dedicated data [...] may be used worldwide without limitations in time.
GMES dedicated data and GMES service information are provided to users without any express or implied warranty, including as regards quality and suitability for any purpose. |
Attribution
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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Tento soubor podléhá licenci Creative Commons Uveďte autora-Zachovejte licenci 3.0 IGO. Uveďte autora: ESA, CC BY-SA IGO 3.0
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Datum a čas | Náhled | Rozměry | Uživatel | Komentář | |
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současná | 30. 6. 2020, 20:47 | 2 717 × 2 717 (1,56 MB) | OptimusPrimeBot | #Spacemedia - Upload of https://www.esa.int/var/esa/storage/images/esa_multimedia/images/2020/06/roter_kamm_impact_crater/22104124-1-eng-GB/Roter_Kamm_impact_crater.jpg via Commons:Spacemedia |
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Rozlišení obrázku na šířku | 300 dpi |
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