
eruption on jupiter’s moon io
Another Hubble image of Io, this time in ultraviolet light.
Credit: Francesco Paresce (ESA/ STScI) Paola Sartoretti, University of Padova
![Hubble Captures Volcanic Eruption Plume From Io, June 19, 1997.
The Hubble telescope has snapped a picture of a 400-kilometer-high (250-mile-high) plume of gas and dust from a volcanic eruption on Io, Jupiter’s large, innermost moon.
Io was passing in front of Jupiter when Hubble took this image. The plume appears as an orange patch just off the edge of Io [at eight o’clock], against the blue background of Jupiter’s clouds. Io’s volcanic eruptions blast material hundreds of kilometers into space in giant plumes of gas and dust. In this image, material must have been blown out of the volcano at more than 2,000 mph to form a plume of this size, which is the largest yet seen on Io.
Credit: John Spencer (Lowell Observatory) and NASA](http://25.media.tumblr.com/tumblr_luow88st9Q1r4o9aco1_400.jpg)
Hubble Captures Volcanic Eruption Plume From Io, June 19, 1997.
The Hubble telescope has snapped a picture of a 400-kilometer-high (250-mile-high) plume of gas and dust from a volcanic eruption on Io, Jupiter’s large, innermost moon.Credit: John Spencer (Lowell Observatory) and NASA
Io was passing in front of Jupiter when Hubble took this image. The plume appears as an orange patch just off the edge of Io [at eight o’clock], against the blue background of Jupiter’s clouds. Io’s volcanic eruptions blast material hundreds of kilometers into space in giant plumes of gas and dust. In this image, material must have been blown out of the volcano at more than 2,000 mph to form a plume of this size, which is the largest yet seen on Io.

Crescent Io from New Horizons, March 02, 2007.
Converted from FITS, cropped, and tweaked with GIMP’s Curves tool, by yours truly, FWIW. Now if I can just figure out how to combine images w/ different filters to create a color image, we’ll really be in business here.
Click Here to play a movie summing observations of the Io torus during five Jupiter days (10-14 November 2000).Credit: NASA/JPL/University of Colorado/Space Science Institute
Click Here to play a movie of the Io torus as observed on 11 November 2000. Because the atoms giving off the light are trapped by Jupiter’s tilted magnetic field, the torus wobbles back and forth during the course of a Jupiter day.Credit: NASA/JPL/University of Colorado/Space Science Institute