This infrared image shows ash spewing out of Iceland's Eyjafjallajokull volcano. It was taken April 17 by a NASA spacecraft. Hotter areas, shown in red, can be seen at the ash plume's base. NASA/JPL/EO-1 Mission/GSFC/Ashley Davies hide caption

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Tracking Volcano Ash To Improve Flight Safety
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Rail Service Benefits From Flight Cancellations
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Flower Industry Wilts From Volcanic Ash Disruptions
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British Government Criticized For Travel Chaos
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Korean Air cargo planes sit idle on the tarmac at the Incheon International Airport in Incheon, west of Seoul, South Korea, on Monday. Every day, on average, 10,000 tons of goods are airfreighted between Asia and Europe. But none of that has moved for the past week after Iceland's volcanic eruption. Lee Jin-man/AP hide caption

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Volcanic Ash In Europe Halts Airfreight In Asia
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A Letter From My European 'Volcation'
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U.S. Airlines See Major Disruption, Some Losses
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Germany Criticized Over Massive Flight Restrictions
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It's Not Just Passengers Trying To Catch A Flight
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Planes, Trains, Automobiles And Volcanic Ash
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European Flights Resume But Backlog Remains
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Flight Delays Stall Fresh Veggies To Britain
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Iceland Volcano Emits More Lava, Less Ash
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Scientists: Volcano Could Erupt Again
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Britain Sends Warships To Aid Stranded Travelers
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An empty runway at Edinburgh airport, where flights were canceled because of volcanic ash from Iceland. The situation is bad, but experts say it could be much worse. Jeff J Mitchell/Getty Images hide caption

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Stranded airline passengers queue for information at El Prat international airport in Barcelona, Spain. All flights in and out of Barcelona's El Prat and 16 other Spanish airports have been grounded by the volcanic ash drifting across Europe. Jasper Juinen/Getty Images hide caption

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Airlines Question Flight Ban Due To Volcanic Ash
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The MODIS instrument on NASA's Terra satellite captured an ash plume from the Eyjafjallajokull volcano on Friday. Though satellite images can tell scientists where the ash is, they don't help forecasters determine how much ash is in the air — or at what point it becomes a hazard to airplanes. MODIS Rapid Response Team/NASA via Getty Images hide caption

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Hazy Ash Cloud Forecast Complicates Air Travel
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Researchers Evgenia Ilyinskaya and Asgerdur Sigurdardottir sweep up volcanic ash from a small bridge just south of the Eyjafjallajokull volcano. The ash will be taken back to the University of Iceland for analysis. Joe Palca/NPR hide caption

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Inside The Plume, A Volcano Tells Its Secrets
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Volcanic Ash Continues To Hamper Air Travel
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European Travel, Business Stuck In Volcano Ash
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