EUROPE-AIR

Iceland's Eyjafjallajokull volcano sends a plume of ash and steam across the North Atlantic prompting authorities in the United Kingdom, Ireland, France, and Scandinavia to close airspace over their countries in this image provided from NASA's Terra satellite and taken April 15, 2010. A huge ash cloud from an Icelandic volcano turned the skies of northern Europe into a no-fly zone on Thursday, stranding hundreds of thousands of passengers. REUTERS/NASA/Handout (ENVIRONMENT IMAGES OF THE DAY) FOR EDITORIAL USE ONLY. NOT FOR SALE FOR MARKETING OR ADVERTISING CAMPAIGNS