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11.15.2016 Schiaparelli Impact Site on Mars, Stereo
11.03.2016 Schiaparelli Impact Site on Mars, in Color
03.30.2016 Erisa Hines
03.30.2016 Buzz Aldrin
03.21.2016 For a Decade Orbiting Mars: One Recent View
03.09.2016 For a Decade Orbiting Mars: One Recent View
03.09.2016 Mars Reconnaissance Orbiter By the Numbers
03.01.2016 MRO sees Frosty Spring Slopes
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02.10.2016 Wind at Work
11.16.2015 Change Observed in Martian Sand Dune
10.05.2015 'The Martian' Story's Ares 4 Landing Site
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06.29.2015 Mars Exploration Zone Layout Considerations
06.17.2015 Active High-Latitude Dune Gullies
06.03.2015 Crisp Crater in Sirenum Fossae
05.20.2015 Sedimentary Rock Layers on a Crater Floor
05.20.2015 Honey, I Shrunk the Mesas
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05.04.2015 Diverse Orbits Around Mars
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03.25.2015 Pitted Landforms in Southern Hellas Planitia
03.12.2015 Curiosity Heading Away from 'Pahrump Hills'
02.18.2015 Lava Flow Near the Base of Olympus Mons
02.09.2015 Yardangs in Arsinoes Chaos, Mars
02.04.2015 Curiosity Rover at 'Pahrump Hills'
01.22.2015 Frost on Crater Slope
01.16.2015 Components of Beagle 2 Flight System on Mars
12.03.2014 An Enigmatic Feature in Athabasca Lava Flows
12.02.2014 NASA's Journey to Mars
11.07.2014 Mars Orbiter Sizes Up Passing Comet
10.19.2014 Siding Spring Mars Spacecraft
Opportunity at 'Concepción' Crater, Seen from OrbitThis image shows NASA's Mars Exploration Rover Opportunity perched on the edge of "Concepción" crater in Meridiani Planum, Mars.
The image was acquired by the High Resolution Imaging Science Experiment (HiRISE) camera on NASA's Mars Reconnaissance Orbiter on February 13, 2010, during the 2,153rd Martian day, or sol, of Opportunity's mission on Mars.
Concepción crater is a fresh crater, 10 meters (33 feet) in diameter, with dark rays that clearly overprint the north-trending, wind-shaped ripples. North is toward the top. The rover is at the one o'clock position beside the crater. The superimposed arrow in Figure 1 points to the rover. Mid-afternoon sunshine illuminates the scene from the left.
The dark rays are produced by shadows cast by blocky ejecta -- material thrown outward by the impact that excavated the crater. The presence of the rays and similar relationships with other fresh craters in Meridiani Planum indicate that this is likely the youngest crater visited by any rover on Mars (estimated to have resulted from an impact thousands to tens of thousands of years ago).
Note rover tracks in ripples to the north and northwest of the rover. The rover team uses these high-resolution images (about 25 centimeters or one foot per pixel) to help navigate the rover. In addition, exploring areas with the rover covered by such high-resolution images provides "ground truth" for the orbital observations. This view covers a small portion of HiRISE observation ESP_016644_1780.
The University of Arizona, Tucson, operates the HiRISE camera, which was built by Ball Aerospace & Technologies Corp., Boulder, Colo. NASA's Jet Propulsion Laboratory, a division of the California Institute of Technology, Pasadena, manages the Mars Reconnaissance Orbiter for the NASA Science Mission Directorate, Washington. Lockheed Martin Space Systems, Denver, is the prime contractor for the project and built the spacecraft.
Image Credit: NASA/JPL-Caltech/University of Arizona