As Seen From Space: Mt. Etna Boils Over

Italy's Mount Etna has turned on again, spewing lava and gas in its first big eruption in 2013. The volcano is one of the most active in the world, and is Europe's tallest active volcano, currently standing about 3,329 m (10,922 ft) high. The volcano has been "simmering" for 10 months, but on February 19