File:PIA16139 Puzzling Little Martian Spheres That Don't Taste Like 'Blueberries'.tif
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Summary
DescriptionPIA16139 Puzzling Little Martian Spheres That Don't Taste Like 'Blueberries'.tif |
English: Small spherical objects fill the field in this mosaic combining four images from the Microscopic Imager on NASA's Mars Exploration Rover Opportunity. The view covers an area about 2.4 inches (6 centimeters) across, at an outcrop called "Kirkwood" in the Cape York segment of the western rim of Endeavour Crater. The individual spherules are up to about one-eighth inch (3 millimeters) in diameter.
The Microscopic Imager took the component images during the 3,064th Martian day, or sol, of Opportunity's work on Mars (Sept. 6, 2012). For a color view of the Kirkwood outcrop as Opportunity was approaching it two weeks earlier, see PIA16128. Opportunity discovered spherules at its landing site more than eight-and-a-half years earlier. Those spherules were nicknamed "blueberries." They provided important evidence about long-ago wet environmental conditions on Mars because researchers using Opportunity's science instruments identified them as concretions rich in the mineral hematite deposited by water saturating the bedrock. A picture of the "blueberries" from the same Microscopic Imager is PIA05564. The spherules at Kirkwood do not have the iron-rich composition of the blueberries. They also differ in concentration, distribution and structure. Some of the spherules in this image have been partially eroded away, revealing concentric internal structure. Opportunity's science team plans to use the rover for further investigation of these spherules to determine what evidence they can provide about ancient Martian environmental conditions. |
Date | |
Source | http://photojournal.jpl.nasa.gov/catalog/PIA16139 |
Author | NASA/JPL-Caltech/Cornell Univ./ USGS/Modesto Junior College |
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This image or video was catalogued by Jet Propulsion Laboratory of the United States National Aeronautics and Space Administration (NASA) under Photo ID: PIA16139. This tag does not indicate the copyright status of the attached work. A normal copyright tag is still required. See Commons:Licensing. Other languages:
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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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6 September 2012
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current | 21:37, 20 November 2013 | ![]() | 1,809 × 1,856 (3.21 MB) | commons>MoreInput | User created page with UploadWizard |
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Image title | converted PNM file |
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Width | 1,809 px |
Height | 1,856 px |
Compression scheme | Uncompressed |
Pixel composition | Black and white (Black is 0) |
Number of components | 1 |
Number of rows per strip | 4 |
Data arrangement | chunky format |