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Mount Etna

Mount Etna

Several vents near the summit of Mount Etna emitted plumes of volcanic gases on March 31, 2013. This false-color (near infrared, red, and green) satellite image was collected by the Advanced Spaceborne Thermal Emission and Reflection Radiometer (ASTER) on the Terra satellite. Volcanic plumes, clouds, and snow are white, while forests are dark red, and fields are bright red. Fresh lava flows are black, and older lava flows with more vegetation are progressively lighter and redder. Towns, located at the foot of the volcano, are brown.

NASA Earth Observatory image by Jesse Allen and Robert Simmon, using data from the NASA/GSFC/METI/ERSDAC/JAROS, and U.S./Japan ASTER Science Team.