Gemini North Telescope observes eruptions on Io
Image: NSF/NASA/JPL-Caltech/UC Berkeley/Gemini Observatory
This image, taken in near-infrared light by the Gemini North Telescope in Hawaii, reveals two of the three volcanic outbursts that astronomers witnessed during a two-week period on Jupiterís moon Io. The largest and brightest blast appears in the upper right; the fainter outburst can be seen at the bottom edge of the moon. A lava lake named Loki is the bright spot in the middle of Io. The outburst at upper right represented one of the largest observed eruptions on Io, the most volcanically active body in the solar system.