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domingo, 24 de abril de 2016

NASA : Y Marks the Spot .- Y marca el punto

Hola amigos: A VUELO DE UN QUINDE EL BLOG., Una característica sinuosa serpentea hacia el norte desde el polo sur de Encelado como un tentáculo gigante. Esta característica, que se extiende desde el terminador cerca del centro, hacia la parte superior izquierda, es en realidad tectónica en la naturaleza, creado por tensiones en capa de hielo de Encelado.
Los geólogos llaman características como estas en Encelado (313 millas o 504 kilómetros de diámetro) "discontinuidades en forma de Y". Estos se cree que surgen cuando el material de la superficie intenta empujar hacia el norte, comprimiendo y desplazando el hielo existente en el camino. Tales características también se cree que son relativamente jóvenes en función de su falta de cráteres de impacto - un recordatorio de lo sorprendente que es geológicamente activa el satélite Encelado.
More information............
http://www.nasa.gov/image-feature/jpl/pia18366/y-marks-the-spot

Saturn's moon Enceladus
A sinuous feature snakes northward from Enceladus' south pole like a giant tentacle. This feature, which stretches from the terminator near center, toward upper left, is actually tectonic in nature, created by stresses in Enceladus' icy shell.

Geologists call features like these on Enceladus (313 miles or 504 kilometers across) "Y-shaped discontinuities." These are thought to arise when surface material attempts to push northward, compressing or displacing existing ice along the way. Such features are also believed to be relatively young based on their lack of impact craters -- a reminder of how surprisingly geologically active Enceladus is.

This view looks towards the trailing hemisphere of Enceladus. North is up. The image was taken in visible green light with the Cassini spacecraft narrow-angle camera on Feb. 15, 2016.

The view was obtained at a distance of approximately 60,000 miles (100,000 kilometers) from Enceladus. Image scale is 1,900 feet (580 meters) per pixel.

The Cassini mission is a cooperative project of NASA, ESA (the European Space Agency) and the Italian Space Agency. The Jet Propulsion Laboratory, a division of the California Institute of Technology in Pasadena, manages the mission for NASA's Science Mission Directorate, Washington. The Cassini orbiter and its two onboard cameras were designed, developed and assembled at JPL. The imaging operations center is based at the Space Science Institute in Boulder, Colorado.

For more information about the Cassini-Huygens mission visit
and
The Cassini imaging team homepage is at

Credit: NASA/JPL-Caltech/Space Science Institute
Last Updated: April 18, 2016
Editor: Tony Greicius
NASA
Guillermo Gonzalo Sánchez Achutegui
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