File:New Wrinkles on Titan PIA12496.jpg
Original file (795 × 827 pixels, file size: 190 KB, MIME type: image/jpeg)
Captions
Summary
[edit]DescriptionNew Wrinkles on Titan PIA12496.jpg |
English: In this synthetic aperture radar image obtained by NASA's Cassini spacecraft, two generally similar features, upper center and lower right, appear to be low mountains with grooves running roughly in the up-down direction. A set of straight lines are also visible at lower left. But what made the grooves? Grooves can result from forces that originate from within a planet, including forces that pull the crust of a planet apart and cracks produced by melt intruding into the crust. They can come from external forces like wind or rainfall, which produces river channels that can cut down through layers of rock. All of these produce grooves on Earth's surface, and may also be at work on Titan.
Another intriguing thing about this image is that in this image the "light" (actually the radar illumination) comes from the top. With this kind of illumination, the upper side of these mountains should be bright because they face the illumination, but the left side of the upper-center feature and the right side of the lower feature are bright. The brightness indicates that there is a different material in these areas, and the grooves exist in both dark and light materials. The Titan Radar Mapper acquired this image at 41 degrees north latitude and 213 degrees west longitude on December 28, 2009. The image measures 250 kilometers (160 miles) high and 285 kilometers (180 miles) wide, with resolution of about 350 meters (1,100 feet) per pixel. North is left, and the image is illuminated from the top. Incidence angle varies from 11 to 25 degrees. Two dark horizontal lines that run across the middle of the image show the joints between individual radar beams and are not features on the Titan surface. |
Date | |
Source | http://photojournal.jpl.nasa.gov/catalog/PIA12496 |
Author | NASA/JPL |
This image or video was catalogued by Jet Propulsion Laboratory of the United States National Aeronautics and Space Administration (NASA) under Photo ID: PIA12496. This tag does not indicate the copyright status of the attached work. A normal copyright tag is still required. See Commons:Licensing. Other languages:
العربية ∙ беларуская (тарашкевіца) ∙ български ∙ català ∙ čeština ∙ dansk ∙ Deutsch ∙ English ∙ español ∙ فارسی ∙ français ∙ galego ∙ magyar ∙ հայերեն ∙ Bahasa Indonesia ∙ italiano ∙ 日本語 ∙ македонски ∙ മലയാളം ∙ Nederlands ∙ polski ∙ português ∙ русский ∙ sicilianu ∙ slovenščina ∙ Türkçe ∙ українська ∙ 简体中文 ∙ 繁體中文 ∙ +/− |
Licensing
[edit]Public domainPublic domainfalsefalse |
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.) | ||
Warnings:
|
File history
Click on a date/time to view the file as it appeared at that time.
Date/Time | Thumbnail | Dimensions | User | Comment | |
---|---|---|---|---|---|
current | 19:48, 25 January 2010 | 795 × 827 (190 KB) | Captain-tucker (talk | contribs) | {{Information |Description={{en|1=In this synthetic aperture radar image obtained by NASA's Cassini spacecraft, two generally similar features, upper center and lower right, appear to be low mountains with grooves running roughly in the up-down direction. |
You cannot overwrite this file.
File usage on Commons
There are no pages that use this file.
Metadata
This file contains additional information such as Exif metadata which may have been added by the digital camera, scanner, or software program used to create or digitize it. If the file has been modified from its original state, some details such as the timestamp may not fully reflect those of the original file. The timestamp is only as accurate as the clock in the camera, and it may be completely wrong.
_error | 0 |
---|