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</html><thumbnail_url>https://www.nlr.org/wp-content/uploads/2025/10/Volcanic-ash-layer-observed-over-the-North-Sea.jpg</thumbnail_url><thumbnail_width>1900</thumbnail_width><thumbnail_height>1425</thumbnail_height><description>Het laboratoriumvliegtuig van het Nationaal Lucht- en Ruimtevaartlaboratorium (NLR) is gisteren naar de vulkanische aswolk gevlogen. Doel van de vlucht was het verifi&#xEB;ren van de atmosferische modellen die gebruikt worden om een verwachting van de bewegingen van de aswolk te maken. Uit de vlucht die de Cessna Citation zondagavond maakte boven de zuidelijke provincies van [&hellip;]</description></oembed>
