PIA01092_-_Evidence_of_Internal_Activity_on_Europa.jpg
Summary
Galileo spacecraft image of linear features and disrupted terrain on Jupiter's moon Europa.
Description PIA01092 - Evidence of Internal Activity on Europa.jpg |
This six frame mosaic of Europa's surface shows a variety of interesting geologic features. The prominent "X" near the center of the mosaic is the junction of two "triplebands." Triplebands are seen here to be made up of parallel sets of ridges, and can be traced for over 1,600 kilometers (off the image) across Europa's surface. Directly to the south of the "X" is a 75 by 100 kilometer (km) area where the icy crust of Europa has been disrupted by activity from below. This activity could be motion in liquid water, convection in warm ice, or some other process. Many icy blocks, some as large as 10 km across, have been rafted from the edges of this zone. Also seen in this mosaic are various pits and domes that range in size from a few kilometers to nearly 20 km across. These geologic features provide evidence of thermal activity below Europa's surface at the time that the features formed. These images were obtained by the Solid State Imaging (CCD) system on NASA's Galileo spacecraft during its sixth orbit around Jupiter. North is to the top of the picture, with the sun illuminating the scene from the right. The center of this mosaic is located near 10 degrees north latitude, 271 degrees west longitude. The image, which is about 300 by 300 km across, was acquired at a resolution of 180 meters per picture element. 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 . |
Date | |
Source | http://photojournal.jpl.nasa.gov/catalog/PIA01092 |
Author | NASA / JPL / Arizona State University |
Other versions | http://ciclops.org/view.php?id=4178 |
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Photo ID:
PIA01092
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Licensing
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This file is in the public domain in the United States because it was solely created by NASA . NASA copyright policy states that "NASA material is not protected by copyright unless noted ". (See Template:PD-USGov , NASA copyright policy page or JPL Image Use Policy .) | ||
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