Europe's largest black ash volcanic ash
Vatnajokull, Europe's largest glacier and one of the most beautiful glaciers in the world, has been tinged with a black color due to Grimsvotn volcanic ash in Iceland.Video: Iceland's most active volcano erupts
Iceland closed the main international airport and canceled domestic flights after the country's most active volcano, Grimsvotn, began erupting.Volcanoes can wake up faster than expected
The most frequent active volcano in Iceland erupted again last weekend, after 7 years of silence. Meanwhile, scientists warn, volcanoes seemingly sleeping peacefully