Mt. Etna

Located on the Italian island of Sicily, Mt. Etna is one of the world's most active volcanoes. In this image of the volcano in 2001, a plume of steam and smoke rising from the crater drifts over some of the many dark lava flows that cover its slopes.

Image date: 29 July 2001

Part of the US Geological Survey's "Earth as Art 2" collection of images taken by the Landsat 7 satellite, the ASTER instrument aboard the Terra satellite, and the MODIS instruments aboard the Terra and Aqua satellites.

Since 1972, Landsat satellites have collected from space information about Earth’s continents and coastal areas, enabling scientists to study many aspects of the planet and to evaluate changes caused by both natural processes and human practices. This image was created by visualizing both visible-light and infrared data in colors visible to the human eye; band combinations and colors were chosen to optimize their dramatic appearance.

Credit: ASTER/U.S. Geological Survey [source has higher resolution version]

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