May 12, 2012 08:31 AM EDT
Scientists 'Read' the Ash from the Icelandic Volcano 2 years after Its Eruption
In May 2010, the ash cloud from the Icelandic volcano Eyjafjallajökull reached the Iberian Peninsula and brought airports to a halt all over Europe. At the time, scientists followed its paths using satellites, laser detectors, sun photometers and other instruments. Two years later they have now p...