Through a veil of clouds, a long brown ash plume can still be seen coming from Mt. Etna on the island of Sicily. This image was captured by the Moderate Resolution Imaging Spectroradiometer (MODIS) on the Terra satellite on November 4, 2002. The erupting volcano is still hot enough to produce a thermal anomaly signature detected by MODIS (red dot).
Image courtesy Jeff Schmaltz, MODIS Rapid Response Team, NASA GSFC