PIA01070: Changes on Io between Voyager 1 and Galileo's Second Orbit Around an Unnamed Vent North of Prometheus

Changes on Io between Voyager 1 and Galileo’s Second Orbit Around an Unnamed Vent North of Prometheus


Detail of changes around a probable vent about 650 kilometers north of Prometheus on Jupiter's moon Io as seen in images obtained by the Voyager 1 spacecraft in April 1979 (left) and the imaging system aboard NASA's Galileo spacecraft on September 7th, 1996 (right). The re-arranging of dark and light radial surface patterns may be a result of plume fallout. North is to the top of both images which are approximately 400 kilometers square.

Background Info:

The Jet Propulsion Laboratory, Pasadena, CA manages the Galileo mission for NASA's Office of Space Science, Washington, DC. JPL is an operating division of California Institute of Technology (Caltech).

This image and other images and data received from Galileo are posted on the World Wide Web, on the Galileo mission home page at URL http://galileo.jpl.nasa.gov. Background information and educational context for the images can be found at http://www.jpl.nasa.gov/galileo/sepo .

Cataloging Keywords:

Name Value Additional Values
Target Io Jupiter
System Jupiter
Target Type Satellite Planet
Mission Voyager Galileo
Instrument Host Voyager 1 Galileo Orbiter
Host Type Flyby Spacecraft Orbiter, Probe
Instrument Solid-State Imaging (SSI)
Extra Keywords Color, Plume
Acquisition Date
Release Date 1997-11-18
Date in Caption
Image Credit NASA/JPL/University of Arizona
Source photojournal.jpl.nasa.gov/catalog/PIA01070
Identifier PIA01070