Thursday, April 15, 2010
In this image made available by NEODASS/University of Dundee shows the volcanic ash plume from Iceland, top left, to the north of Britain at received by NASA's Terra Satellite at 11.39 GMT Thursday April 15, 2010. Ash from Iceland's spewing volcano halted air traffic across a wide swathe of Europe on Thursday, grounding planes on a scale not seen since the 9/11 terror attacks. Thousands of flights were canceled, tens of thousands of passengers were stranded and officials said it was not clear when it would be safe enough to fly again.
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