CICLOPS: Cassini Imaging Central Laboratory for OPerationS

Slumping Cliff on Io in High Resolution
[For trouble viewing the images/movies on this page, go here]
Slumping Cliff on Io in High Resolution
PIA 02597

Image 798 x 401:
PNG 270 KB


A cliff slumps outward in these high-resolution views that NASA's Galileo spacecraft captured of the edge of a mountain named Telegonus Mensa on Jupiter's moon Io.

When Galileo flew near the south pole of Io in October 2001, scientist's targeted this cliff to study the process of erosion. Water and wind cause most erosion on Earth, but Io has neither surface water nor an atmosphere. The cliff is slumping due to gravity.

The smaller picture (top) has a resolution of 10 meters (33 feet) per picture element. Galileo's camera took it from a distance of about 1,000 kilometers (620 miles). North is to the top and the Sun illuminates the surface from the upper right.

The Jet Propulsion Laboratory, a division of the California Institute of Technology in Pasadena, manages the Galileo mission for NASA's Office of Space Science, Washington, D.C. Additional information about Galileo and its discoveries is available on the Galileo mission home page at Background information and educational context for the images can be found at
Image Credit: NASA/JPL