According to the @worldmetorg, July 2023 is likely to have been the hottest month on record. While much of Europe, North America and Asia suffered the immediate consequences of these brutal temperatures, extreme events are also hitting hard far away in the icy reaches of Antarctica. In a paper published today, scientists highlight Antarctica’s vulnerability to extremes and the role that satellites play in monitoring this remote region.
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This week’s edition of the Earth from Space programme features a Copernicus Sentinel-2 image of melt ponds in the province of Avannaata in West Greenland.
Download the image: https://www.esa.int/ESA_Multimedia/Images/2022/09/Melt_ponds_in_West_Greenland
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Glaciers across the globe have lost over nine trillion tonnes of ice in half a century. How will glaciers look over the coming decades? “It all depends on what humans are doing now in terms of greenhouse gas emissions:” this is the message one scientist delivered during an ESA-led expedition to the Gorner Glacier in Switzerland – one of the biggest ice masses in the Alps.
As world leaders gather for the 26th @United Nations Climate Change Conference of Parties, watch the exclusive premiere of the documentary that follows ESA astronaut Luca Parmitano, along with a team of glaciologists and climate experts, on their journey across the Alps to learn how rising global temperatures are taking their toll on glaciers.
The documentary features breathtaking scenery of the Gorner Glacier as well as interviews with climate specialists as they explain how we can monitor glaciers using both satellite data and in situ measurements.
Learn more about this expedition: https://blogs.esa.int/exploration/a-tale-of-ice-and-water/
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Researchers took one of the heaviest, bulkiest parts of an Earth-orbiting satellite, placed it in a plasma wind tunnel, then proceeded to melt it into vapour. Their goal was to better understand how satellites burn up during reentry, to minimise the risk of endangering anyone on the ground.
Taking place as part of our Clean Space initiative, the fiery testing occurred inside a plasma wind tunnel, reproducing reentry conditions, at the DLR German Aerospace Center’s site in Cologne.
A magnetotorquer – designed to interact magnetically with Earth’s magnetic field to shift satellite orientation – was heated to several thousands of degrees C within the hypersonic plasma.
As part of a larger effort called CleanSat, we are developing technologies and techniques to ensure future low-orbiting satellites are designed according to the concept of ‘D4D’ – design for demise – ensuring they will burn up entirely when they reenter the atmosphere.
Credit: ESA/DLR/Belstead Research
Learn more: http://bit.ly/MeltingASatelliteAPieceAtATime
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We are Europe’s gateway to space. Our mission is to shape the development of Europe’s space capability and ensure that investment in space continues to deliver benefits to the citizens of Europe and the world. Check out http://www.esa.int/ESA to get up to speed on everything space related.
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