Mission Mars Odyssey - 2

<h1>PIA04408: Gullies on Martian Crater (THEMIS)</h1><div class="PIA04408" lang="en" style="width:800px;text-align:left;margin:auto;background-color:#000;padding:10px;max-height:150px;overflow:auto;">This visible-light image, taken by the thermal emission imaging system on NASA's 2001 Mars Odyssey spacecraft, indicates that gullies on martian crater walls may be carved by liquid water melting from remnant snow packs. The gullies in the top right-center appear to emerge from beneath and within a gradually disappearing blanket of snow. The current snow pack in this crater (located at 43 degrees south, 214 degrees east) appears to remain only on the cold, pole facing crater wall (top). On the less-shaded, warmer sides of the crater (left), the snow cover has completely disappeared, leaving the gullies exposed. The image shows an area 14.8 kilometers (9.2 miles) by 21.6 kilometers (13.4 miles). North is toward the top, and illumination is from the left.<p>NASA's Jet Propulsion Laboratory manages the 2001 Mars Odyssey mission for NASA's Office of Space Science, Washington, D.C. The thermal emission imaging system was provided by Arizona State University, Tempe. Lockheed Martin Astronautics, Denver, is the prime contractor for the project, and developed and built the orbiter. Mission operations are conducted jointly from Lockheed Martin and from JPL, a division of the California Institute of Technology in Pasadena.<br /><br /><a href="http://photojournal.jpl.nasa.gov/catalog/PIA04408" onclick="window.open(this.href); return false;" title="Voir l'image PIA04408: Gullies on Martian Crater (THEMIS) sur le site de la NASA">Voir l'image PIA04408: Gullies on Martian Crater (THEMIS) sur le site de la NASA.</a></div>
PIA04408: Gullies on Martian Crater (THEMIS)
<h1>PIA04410: Crater Wall and Floor</h1><div class="PIA04410" lang="en" style="width:468px;text-align:left;margin:auto;background-color:#000;padding:10px;max-height:150px;overflow:auto;"><p><a href="/figures/PIA04410_context.jpg"></a><br><p>3D Projection onto MOLA data <a href="/figures/PIA04410_projection.jpg"></a><br><p>The impact crater observed in this THEMIS image taken in Terra Cimmeria suggests sediments have filled the crater due to the flat and smooth nature of the floor compared to rougher surfaces at higher elevations. The abundance of several smaller impact craters on the floor of the larger crater indicate however that the flat surface has been exposed for an extended period of time. The smooth surface of the crater floor and rougher surfaces at higher elevations are observed in the 3-D THEMIS image that is draped over MOLA topography (2X vertical exaggeration).<p>Note: this THEMIS visual image has not been radiometrically nor geometrically calibrated for this preliminary release. An empirical correction has been performed to remove instrumental effects. A linear shift has been applied in the cross-track and down-track direction to approximate spacecraft and planetary motion. Fully calibrated and geometrically projected images will be released through the Planetary Data System in accordance with Project policies at a later time.<p>NASA's Jet Propulsion Laboratory manages the 2001 Mars Odyssey mission for NASA's Office of Space Science, Washington, D.C. The Thermal Emission Imaging System (THEMIS) was developed by Arizona State University, Tempe, in collaboration with Raytheon Santa Barbara Remote Sensing. The THEMIS investigation is led by Dr. Philip Christensen at Arizona State University. Lockheed Martin Astronautics, Denver, is the prime contractor for the Odyssey project, and developed and built the orbiter. Mission operations are conducted jointly from Lockheed Martin and from JPL, a division of the California Institute of Technology in Pasadena.<p>Image information: VIS instrument. Latitude -22.9, Longitude 155.7 East (204.3 West). 19 meter/pixel resolution.<p><br /><br /><a href="http://photojournal.jpl.nasa.gov/catalog/PIA04410" onclick="window.open(this.href); return false;" title="Voir l'image PIA04410: Crater Wall and Floor sur le site de la NASA">Voir l'image PIA04410: Crater Wall and Floor sur le site de la NASA.</a></div>
PIA04410: Crater Wall and Floor
<h1>PIA04411: Granicus Vallis</h1><div class="PIA04411" lang="en" style="width:507px;text-align:left;margin:auto;background-color:#000;padding:10px;max-height:150px;overflow:auto;"><p><a href="/figures/PIA04411_context.jpg"></a><br><p>Granicus Vallis, located northwest of the Elysium volcanic complex, may owe its origin to the interaction of volcanic heating and subsurface ground ice. One of the most interesting features seen in this image are the quasi-dendritic depressions, best seen in the upper third of the image. These may be drainage systems formed by the melting of the local permafrost table. Granicus is the ancient name for a river in Turkey.<p>Note: this THEMIS visual image has not been radiometrically nor geometrically calibrated for this preliminary release. An empirical correction has been performed to remove instrumental effects. A linear shift has been applied in the cross-track and down-track direction to approximate spacecraft and planetary motion. Fully calibrated and geometrically projected images will be released through the Planetary Data System in accordance with Project policies at a later time.<p>NASA's Jet Propulsion Laboratory manages the 2001 Mars Odyssey mission for NASA's Office of Space Science, Washington, D.C. The Thermal Emission Imaging System (THEMIS) was developed by Arizona State University, Tempe, in collaboration with Raytheon Santa Barbara Remote Sensing. The THEMIS investigation is led by Dr. Philip Christensen at Arizona State University. Lockheed Martin Astronautics, Denver, is the prime contractor for the Odyssey project, and developed and built the orbiter. Mission operations are conducted jointly from Lockheed Martin and from JPL, a division of the California Institute of Technology in Pasadena.<p>Image information: VIS instrument. Latitude 31.7, Longitude 125.4 East (234.6 West). 19 meter/pixel resolution.<p><br /><br /><a href="http://photojournal.jpl.nasa.gov/catalog/PIA04411" onclick="window.open(this.href); return false;" title="Voir l'image PIA04411: Granicus Vallis sur le site de la NASA">Voir l'image PIA04411: Granicus Vallis sur le site de la NASA.</a></div>
PIA04411: Granicus Vallis
<h1>PIA04412: Freedom Crater</h1><div class="PIA04412" lang="en" style="width:468px;text-align:left;margin:auto;background-color:#000;padding:10px;max-height:150px;overflow:auto;"><p><a href="/figures/PIA04412_context.jpg"></a><br><p>Freedom crater, located in Acidalia Planitia, exhibits a concentric ring pattern in its interior, suggesting that there has been some movement of these materials towards the center of the crater. Slumping towards the center may have been caused by the presence of ground ice mixed in with the sediments. The origin for the scarps on the western edge of the interior deposit is unknown.<p>Note: this THEMIS visual image has not been radiometrically nor geometrically calibrated for this preliminary release. An empirical correction has been performed to remove instrumental effects. A linear shift has been applied in the cross-track and down-track direction to approximate spacecraft and planetary motion. Fully calibrated and geometrically projected images will be released through the Planetary Data System in accordance with Project policies at a later time.<p>NASA's Jet Propulsion Laboratory manages the 2001 Mars Odyssey mission for NASA's Office of Space Science, Washington, D.C. The Thermal Emission Imaging System (THEMIS) was developed by Arizona State University, Tempe, in collaboration with Raytheon Santa Barbara Remote Sensing. The THEMIS investigation is led by Dr. Philip Christensen at Arizona State University. Lockheed Martin Astronautics, Denver, is the prime contractor for the Odyssey project, and developed and built the orbiter. Mission operations are conducted jointly from Lockheed Martin and from JPL, a division of the California Institute of Technology in Pasadena.<p>Image information: VIS instrument. Latitude 43.3, Longitude 351.3 East (8.7 West). 19 meter/pixel resolution.<p><br /><br /><a href="http://photojournal.jpl.nasa.gov/catalog/PIA04412" onclick="window.open(this.href); return false;" title="Voir l'image PIA04412: Freedom Crater sur le site de la NASA">Voir l'image PIA04412: Freedom Crater sur le site de la NASA.</a></div>
PIA04412: Freedom Crater
<h1>PIA04428: Mamers Vallis</h1><div class="PIA04428" lang="en" style="width:480px;text-align:left;margin:auto;background-color:#000;padding:10px;max-height:150px;overflow:auto;"><p><a href="/figures/PIA04428_context.jpg"></a><br><p>This sinuous channel begins at the edge of Cerulli Crater in northern Arabia and snakes its way across 1000 km of cratered highlands before reaching Deuteronilus Mensae at the boundary of the northern lowlands. The fluid that carved the channel, either lava or water, flowed from the bottom of this scene to the top. The quasi-streamlined features on the channel floor may have nothing to do with flow and instead may be due to a permafrost creep process.<p>Note: this THEMIS visual image has not been radiometrically nor geometrically calibrated for this preliminary release. An empirical correction has been performed to remove instrumental effects. A linear shift has been applied in the cross-track and down-track direction to approximate spacecraft and planetary motion. Fully calibrated and geometrically projected images will be released through the Planetary Data System in accordance with Project policies at a later time.<p>NASA's Jet Propulsion Laboratory manages the 2001 Mars Odyssey mission for NASA's Office of Space Science, Washington, D.C. The Thermal Emission Imaging System (THEMIS) was developed by Arizona State University, Tempe, in collaboration with Raytheon Santa Barbara Remote Sensing. The THEMIS investigation is led by Dr. Philip Christensen at Arizona State University. Lockheed Martin Astronautics, Denver, is the prime contractor for the Odyssey project, and developed and built the orbiter. Mission operations are conducted jointly from Lockheed Martin and from JPL, a division of the California Institute of Technology in Pasadena.<p>Image information: VIS instrument. Latitude 31.3, Longitude 19.1 East (340.9 West). 19 meter/pixel resolution.<p><br /><br /><a href="http://photojournal.jpl.nasa.gov/catalog/PIA04428" onclick="window.open(this.href); return false;" title="Voir l'image PIA04428: Mamers Vallis sur le site de la NASA">Voir l'image PIA04428: Mamers Vallis sur le site de la NASA.</a></div>
PIA04428: Mamers Vallis
<h1>PIA04429: Arsinoes Chaos</h1><div class="PIA04429" lang="en" style="width:488px;text-align:left;margin:auto;background-color:#000;padding:10px;max-height:150px;overflow:auto;"><p><a href="/figures/PIA04429_context.jpg"></a><br><p>At the easternmost end of Valles Marineris, a rugged, jumbled terrain known as chaos displays a stratigraphy that could be described as precarious. Perched on top of the jumbled blocks is another layer of sedimentary material that is in the process of being eroded off the top. This material is etched by the wind into yardangs before it ultimately is stripped off to reveal the existing chaos.<p>Note: this THEMIS visual image has not been radiometrically nor geometrically calibrated for this preliminary release. An empirical correction has been performed to remove instrumental effects. A linear shift has been applied in the cross-track and down-track direction to approximate spacecraft and planetary motion. Fully calibrated and geometrically projected images will be released through the Planetary Data System in accordance with Project policies at a later time.<p>NASA's Jet Propulsion Laboratory manages the 2001 Mars Odyssey mission for NASA's Office of Space Science, Washington, D.C. The Thermal Emission Imaging System (THEMIS) was developed by Arizona State University, Tempe, in collaboration with Raytheon Santa Barbara Remote Sensing. The THEMIS investigation is led by Dr. Philip Christensen at Arizona State University. Lockheed Martin Astronautics, Denver, is the prime contractor for the Odyssey project, and developed and built the orbiter. Mission operations are conducted jointly from Lockheed Martin and from JPL, a division of the California Institute of Technology in Pasadena.<p>Image information: VIS instrument. Latitude -7.8, Longitude 19.1 East (340.9 West). 19 meter/pixel resolution.<p><br /><br /><a href="http://photojournal.jpl.nasa.gov/catalog/PIA04429" onclick="window.open(this.href); return false;" title="Voir l'image PIA04429: Arsinoes Chaos sur le site de la NASA">Voir l'image PIA04429: Arsinoes Chaos sur le site de la NASA.</a></div>
PIA04429: Arsinoes Chaos
<h1>PIA04430: Valles Marineris - with 3D</h1><div class="PIA04430" lang="en" style="width:488px;text-align:left;margin:auto;background-color:#000;padding:10px;max-height:150px;overflow:auto;"><p><a href="/figures/PIA04430_context.jpg"></a><br><p>The top half of this THEMIS visible image shows interior layered deposits that have long been recognized in Valles Marineris. Upon close examination, the layers appear to be eroding differently, indicating different levels of competency. This, in turn, may be interpreted to indicate different materials, and/or depositional processes. At the bottom of the image, materials eroded from the walls of the canyon form dunes and other aeolian bedforms.<p>Note: this THEMIS visual image has not been radiometrically nor geometrically calibrated for this preliminary release. An empirical correction has been performed to remove instrumental effects. A linear shift has been applied in the cross-track and down-track direction to approximate spacecraft and planetary motion. Fully calibrated and geometrically projected images will be released through the Planetary Data System in accordance with Project policies at a later time.<p>NASA's Jet Propulsion Laboratory manages the 2001 Mars Odyssey mission for NASA's Office of Space Science, Washington, D.C. The Thermal Emission Imaging System (THEMIS) was developed by Arizona State University, Tempe, in collaboration with Raytheon Santa Barbara Remote Sensing. The THEMIS investigation is led by Dr. Philip Christensen at Arizona State University. Lockheed Martin Astronautics, Denver, is the prime contractor for the Odyssey project, and developed and built the orbiter. Mission operations are conducted jointly from Lockheed Martin and from JPL, a division of the California Institute of Technology in Pasadena.<p>Image information: VIS instrument. Latitude -6.5, Longitude 287.3 East (72.7 West). 19 meter/pixel resolution.<p><br /><br /><a href="http://photojournal.jpl.nasa.gov/catalog/PIA04430" onclick="window.open(this.href); return false;" title="Voir l'image PIA04430: Valles Marineris - with 3D sur le site de la NASA">Voir l'image PIA04430: Valles Marineris - with 3D sur le site de la NASA.</a></div>
PIA04430: Valles Marineris - with 3D
<h1>PIA04431: Lycus Sulci</h1><div class="PIA04431" lang="en" style="width:477px;text-align:left;margin:auto;background-color:#000;padding:10px;max-height:150px;overflow:auto;"><p><a href="/figures/PIA04431_context.jpg"></a><br><p>The long sharp-crested features observed in this THEMIS image are named yardangs. Yardangs form by wind erosion and typically lie in the direction of the dominant wind. The impact crater and ejecta blanket appear to be overlying the yardangs and provide an interesting cross-cutting relationship. However, some yardangs appear to be actively forming on the ejecta material which indicates their formation as an ongoing process.<p>Note: this THEMIS visual image has not been radiometrically nor geometrically calibrated for this preliminary release. An empirical correction has been performed to remove instrumental effects. A linear shift has been applied in the cross-track and down-track direction to approximate spacecraft and planetary motion. Fully calibrated and geometrically projected images will be released through the Planetary Data System in accordance with Project policies at a later time.<p>NASA's Jet Propulsion Laboratory manages the 2001 Mars Odyssey mission for NASA's Office of Space Science, Washington, D.C. The Thermal Emission Imaging System (THEMIS) was developed by Arizona State University, Tempe, in collaboration with Raytheon Santa Barbara Remote Sensing. The THEMIS investigation is led by Dr. Philip Christensen at Arizona State University. Lockheed Martin Astronautics, Denver, is the prime contractor for the Odyssey project, and developed and built the orbiter. Mission operations are conducted jointly from Lockheed Martin and from JPL, a division of the California Institute of Technology in Pasadena.<p>Image information: VIS instrument. Latitude 35.2, Longitude 223.6 East (136.4 West). 19 meter/pixel resolution.<p><br /><br /><a href="http://photojournal.jpl.nasa.gov/catalog/PIA04431" onclick="window.open(this.href); return false;" title="Voir l'image PIA04431: Lycus Sulci sur le site de la NASA">Voir l'image PIA04431: Lycus Sulci sur le site de la NASA.</a></div>
PIA04431: Lycus Sulci
<h1>PIA04434: Kasei Vallis</h1><div class="PIA04434" lang="en" style="width:488px;text-align:left;margin:auto;background-color:#000;padding:10px;max-height:150px;overflow:auto;"><p><a href="/figures/PIA04434_context.jpg"></a><br><p><b>3D Projection onto MOLA data</b><a href="/figures/PIA04434_projection.jpg"></a><br><p>The MOLA context image of Kasei Valles suggests the observed channels may be partly structurally controlled due to their rectilinear pattern. However, the high-resolution THEMIS image shows grooves within the channels that can be interpreted as evidence for fluvial activity. This relationship suggests that the initial channel formation was structurally controlled, and that once formed, the channels provided a conduit for movement of material.<p>Note: this THEMIS visual image has not been radiometrically nor geometrically calibrated for this preliminary release. An empirical correction has been performed to remove instrumental effects. A linear shift has been applied in the cross-track and down-track direction to approximate spacecraft and planetary motion. Fully calibrated and geometrically projected images will be released through the Planetary Data System in accordance with Project policies at a later time.<p>NASA's Jet Propulsion Laboratory manages the 2001 Mars Odyssey mission for NASA's Office of Space Science, Washington, D.C. The Thermal Emission Imaging System (THEMIS) was developed by Arizona State University, Tempe, in collaboration with Raytheon Santa Barbara Remote Sensing. The THEMIS investigation is led by Dr. Philip Christensen at Arizona State University. Lockheed Martin Astronautics, Denver, is the prime contractor for the Odyssey project, and developed and built the orbiter. Mission operations are conducted jointly from Lockheed Martin and from JPL, a division of the California Institute of Technology in Pasadena.<p>Image information: VIS instrument. Latitude 15.2, Longitude 288.3 East (71.7 West). 19 meter/pixel resolution.<br /><br /><a href="http://photojournal.jpl.nasa.gov/catalog/PIA04434" onclick="window.open(this.href); return false;" title="Voir l'image PIA04434: Kasei Vallis sur le site de la NASA">Voir l'image PIA04434: Kasei Vallis sur le site de la NASA.</a></div>
PIA04434: Kasei Vallis
<h1>PIA04435: Memnonia Sulci</h1><div class="PIA04435" lang="en" style="width:488px;text-align:left;margin:auto;background-color:#000;padding:10px;max-height:150px;overflow:auto;"><p><a href="/figures/PIA04435_context.jpg"></a><br><p>The wind-sculpted yardangs in this scene are part of the Medusae Fossae Formation, a regionally extensive geologic unit that probably was produced from the accumulation of volcanic ash. The yardangs occur at multiple scales and orientations, perhaps an indication of variations in wind direction and magnitude that could be the result of climate change.<p>Note: this THEMIS visual image has not been radiometrically nor geometrically calibrated for this preliminary release. An empirical correction has been performed to remove instrumental effects. A linear shift has been applied in the cross-track and down-track direction to approximate spacecraft and planetary motion. Fully calibrated and geometrically projected images will be released through the Planetary Data System in accordance with Project policies at a later time.<p>NASA's Jet Propulsion Laboratory manages the 2001 Mars Odyssey mission for NASA's Office of Space Science, Washington, D.C. The Thermal Emission Imaging System (THEMIS) was developed by Arizona State University, Tempe, in collaboration with Raytheon Santa Barbara Remote Sensing. The THEMIS investigation is led by Dr. Philip Christensen at Arizona State University. Lockheed Martin Astronautics, Denver, is the prime contractor for the Odyssey project, and developed and built the orbiter. Mission operations are conducted jointly from Lockheed Martin and from JPL, a division of the California Institute of Technology in Pasadena.<p>Image information: VIS instrument. Latitude -5.6, Longitude 184.1 East (175.9 West). 19 meter/pixel resolution.<br /><br /><a href="http://photojournal.jpl.nasa.gov/catalog/PIA04435" onclick="window.open(this.href); return false;" title="Voir l'image PIA04435: Memnonia Sulci sur le site de la NASA">Voir l'image PIA04435: Memnonia Sulci sur le site de la NASA.</a></div>
PIA04435: Memnonia Sulci
<h1>PIA04436: Crater Chains</h1><div class="PIA04436" lang="en" style="width:486px;text-align:left;margin:auto;background-color:#000;padding:10px;max-height:150px;overflow:auto;"><p><a href="/figures/PIA04436_context.jpg"></a><br><p>The large crater at the top of this THEMIS visible image has several other craters inside of it. Most noticeable are the craters that form a "chain" on the southern wall of the large crater. These craters are a wonderful example of secondary impacts. They were formed when large blocks of ejecta from an impact crashed back down onto the surface of Mars. Secondaries often form radial patterns around the impact crater that generated them, allowing researchers to trace them back to their origin.<p>Note: this THEMIS visual image has not been radiometrically nor geometrically calibrated for this preliminary release. An empirical correction has been performed to remove instrumental effects. A linear shift has been applied in the cross-track and down-track direction to approximate spacecraft and planetary motion. Fully calibrated and geometrically projected images will be released through the Planetary Data System in accordance with Project policies at a later time.<p>NASA's Jet Propulsion Laboratory manages the 2001 Mars Odyssey mission for NASA's Office of Space Science, Washington, D.C. The Thermal Emission Imaging System (THEMIS) was developed by Arizona State University, Tempe, in collaboration with Raytheon Santa Barbara Remote Sensing. The THEMIS investigation is led by Dr. Philip Christensen at Arizona State University. Lockheed Martin Astronautics, Denver, is the prime contractor for the Odyssey project, and developed and built the orbiter. Mission operations are conducted jointly from Lockheed Martin and from JPL, a division of the California Institute of Technology in Pasadena.<p>Image information: VIS instrument. Latitude 19.3, Longitude 347.5 East (12.5 West). 19 meter/pixel resolution.<br /><br /><a href="http://photojournal.jpl.nasa.gov/catalog/PIA04436" onclick="window.open(this.href); return false;" title="Voir l'image PIA04436: Crater Chains sur le site de la NASA">Voir l'image PIA04436: Crater Chains sur le site de la NASA.</a></div>
PIA04436: Crater Chains
<h1>PIA04437: Stop Sign Crater</h1><div class="PIA04437" lang="en" style="width:490px;text-align:left;margin:auto;background-color:#000;padding:10px;max-height:150px;overflow:auto;"><p><a href="/figures/PIA04437_context.jpg"></a><br><p>With its rim eroded off by catastrophic floods in Tiu Vallis and its strangely angular shape, this 12 km diameter crater looks vaguely like a stop sign.<p>Note: this THEMIS visual image has not been radiometrically nor geometrically calibrated for this preliminary release. An empirical correction has been performed to remove instrumental effects. A linear shift has been applied in the cross-track and down-track direction to approximate spacecraft and planetary motion. Fully calibrated and geometrically projected images will be released through the Planetary Data System in accordance with Project policies at a later time.<p>NASA's Jet Propulsion Laboratory manages the 2001 Mars Odyssey mission for NASA's Office of Space Science, Washington, D.C. The Thermal Emission Imaging System (THEMIS) was developed by Arizona State University, Tempe, in collaboration with Raytheon Santa Barbara Remote Sensing. The THEMIS investigation is led by Dr. Philip Christensen at Arizona State University. Lockheed Martin Astronautics, Denver, is the prime contractor for the Odyssey project, and developed and built the orbiter. Mission operations are conducted jointly from Lockheed Martin and from JPL, a division of the California Institute of Technology in Pasadena.<p>Image information: VIS instrument. Latitude 8.6, Longitude 329.2 East (30.8 West). 19 meter/pixel resolution.<br /><br /><a href="http://photojournal.jpl.nasa.gov/catalog/PIA04437" onclick="window.open(this.href); return false;" title="Voir l'image PIA04437: Stop Sign Crater sur le site de la NASA">Voir l'image PIA04437: Stop Sign Crater sur le site de la NASA.</a></div>
PIA04437: Stop Sign Crater
<h1>PIA04438: Textures in Arcadia Planitia</h1><div class="PIA04438" lang="en" style="width:466px;text-align:left;margin:auto;background-color:#000;padding:10px;max-height:150px;overflow:auto;"><p><a href="/figures/PIA04438_context.jpg"></a><br><p>An unusual mix of textures is featured in this image of a surface east of the Phlegra Montes. Scabby mounds, commonly occurring around degraded craters, mix with a more muted, knobby terrain. Cutting through the scene are troughs associated with the quasi-polygonal features that are most evident in the MOLA context image. Given the mid-latitude location, it is likely that ground ice has had a role in shaping this landscape.<p>Note: this THEMIS visual image has not been radiometrically nor geometrically calibrated for this preliminary release. An empirical correction has been performed to remove instrumental effects. A linear shift has been applied in the cross-track and down-track direction to approximate spacecraft and planetary motion. Fully calibrated and geometrically projected images will be released through the Planetary Data System in accordance with Project policies at a later time.<p>NASA's Jet Propulsion Laboratory manages the 2001 Mars Odyssey mission for NASA's Office of Space Science, Washington, D.C. The Thermal Emission Imaging System (THEMIS) was developed by Arizona State University, Tempe, in collaboration with Raytheon Santa Barbara Remote Sensing. The THEMIS investigation is led by Dr. Philip Christensen at Arizona State University. Lockheed Martin Astronautics, Denver, is the prime contractor for the Odyssey project, and developed and built the orbiter. Mission operations are conducted jointly from Lockheed Martin and from JPL, a division of the California Institute of Technology in Pasadena.<p>Image information: VIS instrument. Latitude 44.9, Longitude 175.9 East (184.1 West). 19 meter/pixel resolution.<p><br /><br /><a href="http://photojournal.jpl.nasa.gov/catalog/PIA04438" onclick="window.open(this.href); return false;" title="Voir l'image PIA04438: Textures in Arcadia Planitia sur le site de la NASA">Voir l'image PIA04438: Textures in Arcadia Planitia sur le site de la NASA.</a></div>
PIA04438: Textures in Arcadia Planitia
<h1>PIA04439: Hrad Vallis</h1><div class="PIA04439" lang="en" style="width:479px;text-align:left;margin:auto;background-color:#000;padding:10px;max-height:150px;overflow:auto;"><p><a href="/figures/PIA04439_context.jpg"></a><br><p>Hrad Vallis, seen in this THEMIS visible image, appears to be affecting the local wind patterns. The texture of the terrain just around the valleys is markedly different from that its surroundings.<p>Note: this THEMIS visual image has not been radiometrically nor geometrically calibrated for this preliminary release. An empirical correction has been performed to remove instrumental effects. A linear shift has been applied in the cross-track and down-track direction to approximate spacecraft and planetary motion. Fully calibrated and geometrically projected images will be released through the Planetary Data System in accordance with Project policies at a later time.<p>NASA's Jet Propulsion Laboratory manages the 2001 Mars Odyssey mission for NASA's Office of Space Science, Washington, D.C. The Thermal Emission Imaging System (THEMIS) was developed by Arizona State University, Tempe, in collaboration with Raytheon Santa Barbara Remote Sensing. The THEMIS investigation is led by Dr. Philip Christensen at Arizona State University. Lockheed Martin Astronautics, Denver, is the prime contractor for the Odyssey project, and developed and built the orbiter. Mission operations are conducted jointly from Lockheed Martin and from JPL, a division of the California Institute of Technology in Pasadena.<p>Image information: VIS instrument. Latitude 33.4, Longitude 142.9 East (217.1 West). 19 meter/pixel resolution.<p><br /><br /><a href="http://photojournal.jpl.nasa.gov/catalog/PIA04439" onclick="window.open(this.href); return false;" title="Voir l'image PIA04439: Hrad Vallis sur le site de la NASA">Voir l'image PIA04439: Hrad Vallis sur le site de la NASA.</a></div>
PIA04439: Hrad Vallis
<h1>PIA04440: Gordii Fossae</h1><div class="PIA04440" lang="en" style="width:489px;text-align:left;margin:auto;background-color:#000;padding:10px;max-height:150px;overflow:auto;"><p><a href="/figures/PIA04440_context.jpg"></a><br><p>Numerous lava flows and fossae (cracks) are visible in this region of Mars located southeast of Olympus Mons. There is also a hint that water may have possibly flowed in this region.<p>Note: this THEMIS visual image has not been radiometrically nor geometrically calibrated for this preliminary release. An empirical correction has been performed to remove instrumental effects. A linear shift has been applied in the cross-track and down-track direction to approximate spacecraft and planetary motion. Fully calibrated and geometrically projected images will be released through the Planetary Data System in accordance with Project policies at a later time.<p>NASA's Jet Propulsion Laboratory manages the 2001 Mars Odyssey mission for NASA's Office of Space Science, Washington, D.C. The Thermal Emission Imaging System (THEMIS) was developed by Arizona State University, Tempe, in collaboration with Raytheon Santa Barbara Remote Sensing. The THEMIS investigation is led by Dr. Philip Christensen at Arizona State University. Lockheed Martin Astronautics, Denver, is the prime contractor for the Odyssey project, and developed and built the orbiter. Mission operations are conducted jointly from Lockheed Martin and from JPL, a division of the California Institute of Technology in Pasadena.<p>Image information: VIS instrument. Latitude 13.5, Longitude 230.4 East (129.6 West). 19 meter/pixel resolution.<p><br /><br /><a href="http://photojournal.jpl.nasa.gov/catalog/PIA04440" onclick="window.open(this.href); return false;" title="Voir l'image PIA04440: Gordii Fossae sur le site de la NASA">Voir l'image PIA04440: Gordii Fossae sur le site de la NASA.</a></div>
PIA04440: Gordii Fossae
<h1>PIA04441: Highland/Lowland contact</h1><div class="PIA04441" lang="en" style="width:488px;text-align:left;margin:auto;background-color:#000;padding:10px;max-height:150px;overflow:auto;"><p><a href="/figures/PIA04441_context.jpg"></a><br><p>The smooth plains of Elysium embay the blocky broken up highlands of Aeolis. The plains have been interpreted by researchers to be possibly mudflows or lava flows.<p>Note: this THEMIS visual image has not been radiometrically nor geometrically calibrated for this preliminary release. An empirical correction has been performed to remove instrumental effects. A linear shift has been applied in the cross-track and down-track direction to approximate spacecraft and planetary motion. Fully calibrated and geometrically projected images will be released through the Planetary Data System in accordance with Project policies at a later time.<p>NASA's Jet Propulsion Laboratory manages the 2001 Mars Odyssey mission for NASA's Office of Space Science, Washington, D.C. The Thermal Emission Imaging System (THEMIS) was developed by Arizona State University, Tempe, in collaboration with Raytheon Santa Barbara Remote Sensing. The THEMIS investigation is led by Dr. Philip Christensen at Arizona State University. Lockheed Martin Astronautics, Denver, is the prime contractor for the Odyssey project, and developed and built the orbiter. Mission operations are conducted jointly from Lockheed Martin and from JPL, a division of the California Institute of Technology in Pasadena.<p>Image information: VIS instrument. Latitude -0.8, Longitude 170.8 East (189.2 West). 19 meter/pixel resolution.<p><br /><br /><a href="http://photojournal.jpl.nasa.gov/catalog/PIA04441" onclick="window.open(this.href); return false;" title="Voir l'image PIA04441: Highland/Lowland contact sur le site de la NASA">Voir l'image PIA04441: Highland/Lowland contact sur le site de la NASA.</a></div>
PIA04441: Highland/Lowland contact
<h1>PIA04442: Lycus Sulci</h1><div class="PIA04442" lang="en" style="width:481px;text-align:left;margin:auto;background-color:#000;padding:10px;max-height:150px;overflow:auto;"><p><a href="/figures/PIA04442_context.jpg"></a><br><p>"Lycus Sulci" is the name of a region of ridges and hills located north-northwest of the volcano Olympus Mons. Several dust avalanches can be observed on the flanks of the roughly textured surfaces suggesting a thick coating of fine-grained materials.<p>Note: this THEMIS visual image has not been radiometrically nor geometrically calibrated for this preliminary release. An empirical correction has been performed to remove instrumental effects. A linear shift has been applied in the cross-track and down-track direction to approximate spacecraft and planetary motion. Fully calibrated and geometrically projected images will be released through the Planetary Data System in accordance with Project policies at a later time.<p>NASA's Jet Propulsion Laboratory manages the 2001 Mars Odyssey mission for NASA's Office of Space Science, Washington, D.C. The Thermal Emission Imaging System (THEMIS) was developed by Arizona State University, Tempe, in collaboration with Raytheon Santa Barbara Remote Sensing. The THEMIS investigation is led by Dr. Philip Christensen at Arizona State University. Lockheed Martin Astronautics, Denver, is the prime contractor for the Odyssey project, and developed and built the orbiter. Mission operations are conducted jointly from Lockheed Martin and from JPL, a division of the California Institute of Technology in Pasadena.<p>Image information: VIS instrument. Latitude 27.1, Longitude 214.6 East (145.4 West). 19 meter/pixel resolution.<p><br /><br /><a href="http://photojournal.jpl.nasa.gov/catalog/PIA04442" onclick="window.open(this.href); return false;" title="Voir l'image PIA04442: Lycus Sulci sur le site de la NASA">Voir l'image PIA04442: Lycus Sulci sur le site de la NASA.</a></div>
PIA04442: Lycus Sulci
<h1>PIA04443: Polar Dunes</h1><div class="PIA04443" lang="en" style="width:401px;text-align:left;margin:auto;background-color:#000;padding:10px;max-height:150px;overflow:auto;"><p><a href="/figures/PIA04443_context.jpg"></a><br><p>Dunes in the Vastitas Borealis region of Mars. These sand seas migrate around the north polar cap following the strong polar vortex winds.<p>Note: this THEMIS visual image has not been radiometrically nor geometrically calibrated for this preliminary release. An empirical correction has been performed to remove instrumental effects. A linear shift has been applied in the cross-track and down-track direction to approximate spacecraft and planetary motion. Fully calibrated and geometrically projected images will be released through the Planetary Data System in accordance with Project policies at a later time.<p>NASA's Jet Propulsion Laboratory manages the 2001 Mars Odyssey mission for NASA's Office of Space Science, Washington, D.C. The Thermal Emission Imaging System (THEMIS) was developed by Arizona State University, Tempe, in collaboration with Raytheon Santa Barbara Remote Sensing. The THEMIS investigation is led by Dr. Philip Christensen at Arizona State University. Lockheed Martin Astronautics, Denver, is the prime contractor for the Odyssey project, and developed and built the orbiter. Mission operations are conducted jointly from Lockheed Martin and from JPL, a division of the California Institute of Technology in Pasadena.<p>Image information: VIS instrument. Latitude 77.3, Longitude 87.3 East (272.7 West). 19 meter/pixel resolution.<p><br /><br /><a href="http://photojournal.jpl.nasa.gov/catalog/PIA04443" onclick="window.open(this.href); return false;" title="Voir l'image PIA04443: Polar Dunes sur le site de la NASA">Voir l'image PIA04443: Polar Dunes sur le site de la NASA.</a></div>
PIA04443: Polar Dunes
<h1>PIA04444: Martian Braille</h1><div class="PIA04444" lang="en" style="width:488px;text-align:left;margin:auto;background-color:#000;padding:10px;max-height:150px;overflow:auto;"><p><a href="/figures/PIA04444_context.jpg"></a><br><p>Just north of the hematite deposit in Meridiani Planum, the remnants of a formerly extensive layer of material remain as isolated knobs and buttes. Note the transition from north to south in the size and frequency of these features, a reflection of the decreasing elevation along this trend.<p>Note: this THEMIS visual image has not been radiometrically nor geometrically calibrated for this preliminary release. An empirical correction has been performed to remove instrumental effects. A linear shift has been applied in the cross-track and down-track direction to approximate spacecraft and planetary motion. Fully calibrated and geometrically projected images will be released through the Planetary Data System in accordance with Project policies at a later time.<p>NASA's Jet Propulsion Laboratory manages the 2001 Mars Odyssey mission for NASA's Office of Space Science, Washington, D.C. The Thermal Emission Imaging System (THEMIS) was developed by Arizona State University, Tempe, in collaboration with Raytheon Santa Barbara Remote Sensing. The THEMIS investigation is led by Dr. Philip Christensen at Arizona State University. Lockheed Martin Astronautics, Denver, is the prime contractor for the Odyssey project, and developed and built the orbiter. Mission operations are conducted jointly from Lockheed Martin and from JPL, a division of the California Institute of Technology in Pasadena.<p>Image information: VIS instrument. Latitude -0, Longitude 353 East (7 West). 19 meter/pixel resolution.<p><br /><br /><a href="http://photojournal.jpl.nasa.gov/catalog/PIA04444" onclick="window.open(this.href); return false;" title="Voir l'image PIA04444: Martian Braille sur le site de la NASA">Voir l'image PIA04444: Martian Braille sur le site de la NASA.</a></div>
PIA04444: Martian Braille
<h1>PIA04445: Pavonis Mons Caldera</h1><div class="PIA04445" lang="en" style="width:488px;text-align:left;margin:auto;background-color:#000;padding:10px;max-height:150px;overflow:auto;"><p><a href="/figures/PIA04445_context.jpg"></a><br><p>Pavonis Mons is the middle of the three large volcanoes on the Tharsis bulge. This visible THEMIS image covers the edge of the volcano's caldera. Outside of the caldera, numerous lava flows and impact craters can be seen. In addition, there are a few small features which may be cinder cones. The best example is on the left hand side of the image, about two thirds of the way down from the top. There is an elevation difference of about 4.2 kilometers from the top of the volcano to the caldera floor. This image shows evidence for repeated episodes of mass wasting of the caldera wall, likely due to subsidence of the caldera over time.<p>Note: this THEMIS visual image has not been radiometrically nor geometrically calibrated for this preliminary release. An empirical correction has been performed to remove instrumental effects. A linear shift has been applied in the cross-track and down-track direction to approximate spacecraft and planetary motion. Fully calibrated and geometrically projected images will be released through the Planetary Data System in accordance with Project policies at a later time.<p>NASA's Jet Propulsion Laboratory manages the 2001 Mars Odyssey mission for NASA's Office of Space Science, Washington, D.C. The Thermal Emission Imaging System (THEMIS) was developed by Arizona State University, Tempe, in collaboration with Raytheon Santa Barbara Remote Sensing. The THEMIS investigation is led by Dr. Philip Christensen at Arizona State University. Lockheed Martin Astronautics, Denver, is the prime contractor for the Odyssey project, and developed and built the orbiter. Mission operations are conducted jointly from Lockheed Martin and from JPL, a division of the California Institute of Technology in Pasadena.<p>Image information: VIS instrument. Latitude 0.8, Longitude 246.9 East (113.1 West). 19 meter/pixel resolution.<p><br /><br /><a href="http://photojournal.jpl.nasa.gov/catalog/PIA04445" onclick="window.open(this.href); return false;" title="Voir l'image PIA04445: Pavonis Mons Caldera sur le site de la NASA">Voir l'image PIA04445: Pavonis Mons Caldera sur le site de la NASA.</a></div>
PIA04445: Pavonis Mons Caldera
<h1>PIA04446: Impact Craters</h1><div class="PIA04446" lang="en" style="width:489px;text-align:left;margin:auto;background-color:#000;padding:10px;max-height:150px;overflow:auto;"><p><a href="/figures/PIA04446_context.jpg"></a><br><p>The fluidized impact crater ejecta and flat crater floors observed in this THEMIS image suggest near surface volatiles once played an important role in modifying the martian surface. Gullies observed in crater walls could possibly point to more recent volatile-rock interactions.<p>Note: this THEMIS visual image has not been radiometrically nor geometrically calibrated for this preliminary release. An empirical correction has been performed to remove instrumental effects. A linear shift has been applied in the cross-track and down-track direction to approximate spacecraft and planetary motion. Fully calibrated and geometrically projected images will be released through the Planetary Data System in accordance with Project policies at a later time.<p>NASA's Jet Propulsion Laboratory manages the 2001 Mars Odyssey mission for NASA's Office of Space Science, Washington, D.C. The Thermal Emission Imaging System (THEMIS) was developed by Arizona State University, Tempe, in collaboration with Raytheon Santa Barbara Remote Sensing. The THEMIS investigation is led by Dr. Philip Christensen at Arizona State University. Lockheed Martin Astronautics, Denver, is the prime contractor for the Odyssey project, and developed and built the orbiter. Mission operations are conducted jointly from Lockheed Martin and from JPL, a division of the California Institute of Technology in Pasadena.<p>Image information: VIS instrument. Latitude 13.9, Longitude 297.3 East (62.7 West). 19 meter/pixel resolution.<p><br /><br /><a href="http://photojournal.jpl.nasa.gov/catalog/PIA04446" onclick="window.open(this.href); return false;" title="Voir l'image PIA04446: Impact Craters sur le site de la NASA">Voir l'image PIA04446: Impact Craters sur le site de la NASA.</a></div>
PIA04446: Impact Craters
<h1>PIA04447: Flooded Crater in Terra Sirenum</h1><div class="PIA04447" lang="en" style="width:487px;text-align:left;margin:auto;background-color:#000;padding:10px;max-height:150px;overflow:auto;"><p><a href="/figures/PIA04447_context.jpg"></a><br><p>The floor of this crater displays interesting textures and it appears to have been flooded by some type of material. It is unclear if this material was fluvially emplaced mud (hyperconcentrated flows) or lava. However, there are no volcanic constructs in the immediate region and the fact that the crater rim was breached by Labou Vallis to the east (see regional view in image context) suggests that this material may indeed be mudflows.<p>Note: this THEMIS visual image has not been radiometrically nor geometrically calibrated for this preliminary release. An empirical correction has been performed to remove instrumental effects. A linear shift has been applied in the cross-track and down-track direction to approximate spacecraft and planetary motion. Fully calibrated and geometrically projected images will be released through the Planetary Data System in accordance with Project policies at a later time.<p>NASA's Jet Propulsion Laboratory manages the 2001 Mars Odyssey mission for NASA's Office of Space Science, Washington, D.C. The Thermal Emission Imaging System (THEMIS) was developed by Arizona State University, Tempe, in collaboration with Raytheon Santa Barbara Remote Sensing. The THEMIS investigation is led by Dr. Philip Christensen at Arizona State University. Lockheed Martin Astronautics, Denver, is the prime contractor for the Odyssey project, and developed and built the orbiter. Mission operations are conducted jointly from Lockheed Martin and from JPL, a division of the California Institute of Technology in Pasadena.<p>Image information: VIS instrument. Latitude -9.8, Longitude 207.6 East (152.4 West). 19 meter/pixel resolution.<p><br /><br /><a href="http://photojournal.jpl.nasa.gov/catalog/PIA04447" onclick="window.open(this.href); return false;" title="Voir l'image PIA04447: Flooded Crater in Terra Sirenum sur le site de la NASA">Voir l'image PIA04447: Flooded Crater in Terra Sirenum sur le site de la NASA.</a></div>
PIA04447: Flooded Crater in Terra Sirenum
<h1>PIA04448: Cydonia Craters</h1><div class="PIA04448" lang="en" style="width:545px;text-align:left;margin:auto;background-color:#000;padding:10px;max-height:150px;overflow:auto;"><p><a href="/figures/PIA04448_context.jpg"></a><br><p>Eroded mesas and secondary craters dot the landscape in this area of the Cydonia Mensae region. The single oval-shaped crater displays a "butterfly" ejecta pattern, indicating that the crater formed from a low-angle impact.<p>Note: this THEMIS visual image has not been radiometrically nor geometrically calibrated for this preliminary release. An empirical correction has been performed to remove instrumental effects. A linear shift has been applied in the cross-track and down-track direction to approximate spacecraft and planetary motion. Fully calibrated and geometrically projected images will be released through the Planetary Data System in accordance with Project policies at a later time.<p>NASA's Jet Propulsion Laboratory manages the 2001 Mars Odyssey mission for NASA's Office of Space Science, Washington, D.C. The Thermal Emission Imaging System (THEMIS) was developed by Arizona State University, Tempe, in collaboration with Raytheon Santa Barbara Remote Sensing. The THEMIS investigation is led by Dr. Philip Christensen at Arizona State University. Lockheed Martin Astronautics, Denver, is the prime contractor for the Odyssey project, and developed and built the orbiter. Mission operations are conducted jointly from Lockheed Martin and from JPL, a division of the California Institute of Technology in Pasadena.<p>Image information: VIS instrument. Latitude 32.9, Longitude 343.8 East (16.2 West). 19 meter/pixel resolution.<p><br /><br /><a href="http://photojournal.jpl.nasa.gov/catalog/PIA04448" onclick="window.open(this.href); return false;" title="Voir l'image PIA04448: Cydonia Craters sur le site de la NASA">Voir l'image PIA04448: Cydonia Craters sur le site de la NASA.</a></div>
PIA04448: Cydonia Craters
<h1>PIA04449: Gale Crater Mound</h1><div class="PIA04449" lang="en" style="width:488px;text-align:left;margin:auto;background-color:#000;padding:10px;max-height:150px;overflow:auto;"><p><a href="/figures/PIA04449_context.jpg"></a><br><p>The eroded, layered deposit in Gale Crater is a mound of material rising 3 km above the crater floor. It has been sculpted by wind and possibly water to produce the dramatic landforms seen today. The origin of the sedimentary material that composes the mound remains a contested issue: was it produced from sedimentation in an ancient crater lake or by airfall onto dry land?<p>Note: this THEMIS visual image has not been radiometrically nor geometrically calibrated for this preliminary release. An empirical correction has been performed to remove instrumental effects. A linear shift has been applied in the cross-track and down-track direction to approximate spacecraft and planetary motion. Fully calibrated and geometrically projected images will be released through the Planetary Data System in accordance with Project policies at a later time.<p>NASA's Jet Propulsion Laboratory manages the 2001 Mars Odyssey mission for NASA's Office of Space Science, Washington, D.C. The Thermal Emission Imaging System (THEMIS) was developed by Arizona State University, Tempe, in collaboration with Raytheon Santa Barbara Remote Sensing. The THEMIS investigation is led by Dr. Philip Christensen at Arizona State University. Lockheed Martin Astronautics, Denver, is the prime contractor for the Odyssey project, and developed and built the orbiter. Mission operations are conducted jointly from Lockheed Martin and from JPL, a division of the California Institute of Technology in Pasadena.<p>Image information: VIS instrument. Latitude -5.1, Longitude 137.5 East (222.5 West). 19 meter/pixel resolution.<p><br /><br /><a href="http://photojournal.jpl.nasa.gov/catalog/PIA04449" onclick="window.open(this.href); return false;" title="Voir l'image PIA04449: Gale Crater Mound sur le site de la NASA">Voir l'image PIA04449: Gale Crater Mound sur le site de la NASA.</a></div>
PIA04449: Gale Crater Mound
<h1>PIA04450: Acidalia Planitia</h1><div class="PIA04450" lang="en" style="width:479px;text-align:left;margin:auto;background-color:#000;padding:10px;max-height:150px;overflow:auto;"><p><a href="/figures/PIA04450_context.jpg"></a><br><p>This is an image of an area within Acidalia Planitia that contains patterned ground near the top of the image. This type of surface is likely related to subsurface ice. There are other strange features in this image, including a range of crater morphologies and steps or terraces surrounding the isolated knobs.<p>Note: this THEMIS visual image has not been radiometrically nor geometrically calibrated for this preliminary release. An empirical correction has been performed to remove instrumental effects. A linear shift has been applied in the cross-track and down-track direction to approximate spacecraft and planetary motion. Fully calibrated and geometrically projected images will be released through the Planetary Data System in accordance with Project policies at a later time.<p>NASA's Jet Propulsion Laboratory manages the 2001 Mars Odyssey mission for NASA's Office of Space Science, Washington, D.C. The Thermal Emission Imaging System (THEMIS) was developed by Arizona State University, Tempe, in collaboration with Raytheon Santa Barbara Remote Sensing. The THEMIS investigation is led by Dr. Philip Christensen at Arizona State University. Lockheed Martin Astronautics, Denver, is the prime contractor for the Odyssey project, and developed and built the orbiter. Mission operations are conducted jointly from Lockheed Martin and from JPL, a division of the California Institute of Technology in Pasadena.<p>Image information: VIS instrument. Latitude 33.2, Longitude 322.1 East (37.9 West). 19 meter/pixel resolution.<p><br /><br /><a href="http://photojournal.jpl.nasa.gov/catalog/PIA04450" onclick="window.open(this.href); return false;" title="Voir l'image PIA04450: Acidalia Planitia sur le site de la NASA">Voir l'image PIA04450: Acidalia Planitia sur le site de la NASA.</a></div>
PIA04450: Acidalia Planitia
<h1>PIA04451: Hebrus Valles</h1><div class="PIA04451" lang="en" style="width:537px;text-align:left;margin:auto;background-color:#000;padding:10px;max-height:150px;overflow:auto;"><p><a href="/figures/PIA04451_context.jpg"></a><br><p>About 1000 km west of the massive Elysium volcanic complex, a system of branching troughs shows a continuum of features that provides clues to their origin. Within the scene there are fully formed troughs, some approaching 2 km in depth, as well as shallow, discontinuous pits and troughs. The presence of the latter landforms suggests that a process of collapse is responsible for producing the deep and continuous final form of the troughs.<p>Note: this THEMIS visual image has not been radiometrically nor geometrically calibrated for this preliminary release. An empirical correction has been performed to remove instrumental effects. A linear shift has been applied in the cross-track and down-track direction to approximate spacecraft and planetary motion. Fully calibrated and geometrically projected images will be released through the Planetary Data System in accordance with Project policies at a later time.<p>NASA's Jet Propulsion Laboratory manages the 2001 Mars Odyssey mission for NASA's Office of Space Science, Washington, D.C. The Thermal Emission Imaging System (THEMIS) was developed by Arizona State University, Tempe, in collaboration with Raytheon Santa Barbara Remote Sensing. The THEMIS investigation is led by Dr. Philip Christensen at Arizona State University. Lockheed Martin Astronautics, Denver, is the prime contractor for the Odyssey project, and developed and built the orbiter. Mission operations are conducted jointly from Lockheed Martin and from JPL, a division of the California Institute of Technology in Pasadena.<p>Image information: VIS instrument. Latitude 21.1, Longitude 123.3 East (236.7 West). 19 meter/pixel resolution.<p><br /><br /><a href="http://photojournal.jpl.nasa.gov/catalog/PIA04451" onclick="window.open(this.href); return false;" title="Voir l'image PIA04451: Hebrus Valles sur le site de la NASA">Voir l'image PIA04451: Hebrus Valles sur le site de la NASA.</a></div>
PIA04451: Hebrus Valles
<h1>PIA04452: Dunes</h1><div class="PIA04452" lang="en" style="width:726px;text-align:left;margin:auto;background-color:#000;padding:10px;max-height:150px;overflow:auto;"><p><a href="/figures/PIA04452_context.jpg"></a><br><p>This image shows relatively dark coarse grained material forming individual dunes coalescing into a relatively uniform sand sheet. The origin of the dark sand that formed these dunes have been suggested to be the northern polar layered deposits.<p>Note: this THEMIS visual image has not been radiometrically nor geometrically calibrated for this preliminary release. An empirical correction has been performed to remove instrumental effects. A linear shift has been applied in the cross-track and down-track direction to approximate spacecraft and planetary motion. Fully calibrated and geometrically projected images will be released through the Planetary Data System in accordance with Project policies at a later time.<p>NASA's Jet Propulsion Laboratory manages the 2001 Mars Odyssey mission for NASA's Office of Space Science, Washington, D.C. The Thermal Emission Imaging System (THEMIS) was developed by Arizona State University, Tempe, in collaboration with Raytheon Santa Barbara Remote Sensing. The THEMIS investigation is led by Dr. Philip Christensen at Arizona State University. Lockheed Martin Astronautics, Denver, is the prime contractor for the Odyssey project, and developed and built the orbiter. Mission operations are conducted jointly from Lockheed Martin and from JPL, a division of the California Institute of Technology in Pasadena.<p>Image information: VIS instrument. Latitude 77.7, Longitude 309.4 East (50.6 West). 19 meter/pixel resolution.<p><br /><br /><a href="http://photojournal.jpl.nasa.gov/catalog/PIA04452" onclick="window.open(this.href); return false;" title="Voir l'image PIA04452: Dunes sur le site de la NASA">Voir l'image PIA04452: Dunes sur le site de la NASA.</a></div>
PIA04452: Dunes
<h1>PIA04453: Landslides</h1><div class="PIA04453" lang="en" style="width:553px;text-align:left;margin:auto;background-color:#000;padding:10px;max-height:150px;overflow:auto;"><p><a href="/figures/PIA04453_context.jpg"></a><br><p>The slumping of materials in the walls of this impact crater illustrate the continued erosion of the martian surface. Small fans of debris as well as larger landslides are observed throughout the THEMIS image.<p>Note: this THEMIS visual image has not been radiometrically nor geometrically calibrated for this preliminary release. An empirical correction has been performed to remove instrumental effects. A linear shift has been applied in the cross-track and down-track direction to approximate spacecraft and planetary motion. Fully calibrated and geometrically projected images will be released through the Planetary Data System in accordance with Project policies at a later time.<p>NASA's Jet Propulsion Laboratory manages the 2001 Mars Odyssey mission for NASA's Office of Space Science, Washington, D.C. The Thermal Emission Imaging System (THEMIS) was developed by Arizona State University, Tempe, in collaboration with Raytheon Santa Barbara Remote Sensing. The THEMIS investigation is led by Dr. Philip Christensen at Arizona State University. Lockheed Martin Astronautics, Denver, is the prime contractor for the Odyssey project, and developed and built the orbiter. Mission operations are conducted jointly from Lockheed Martin and from JPL, a division of the California Institute of Technology in Pasadena.<p>Image information: VIS instrument. Latitude 40.9, Longitude 120.5 East (239.5 West). 19 meter/pixel resolution.<p><br /><br /><a href="http://photojournal.jpl.nasa.gov/catalog/PIA04453" onclick="window.open(this.href); return false;" title="Voir l'image PIA04453: Landslides sur le site de la NASA">Voir l'image PIA04453: Landslides sur le site de la NASA.</a></div>
PIA04453: Landslides
<h1>PIA04454: Flooded Crater</h1><div class="PIA04454" lang="en" style="width:541px;text-align:left;margin:auto;background-color:#000;padding:10px;max-height:150px;overflow:auto;"><p><a href="/figures/PIA04454_context.jpg"></a><br><p>Flooded crater in Amazonis Planitia. This crater has been either flooded with mud and or lava. The fluid then ponded up, dried and formed the surface textures we see today.<p>Note: this THEMIS visual image has not been radiometrically nor geometrically calibrated for this preliminary release. An empirical correction has been performed to remove instrumental effects. A linear shift has been applied in the cross-track and down-track direction to approximate spacecraft and planetary motion. Fully calibrated and geometrically projected images will be released through the Planetary Data System in accordance with Project policies at a later time.<p>NASA's Jet Propulsion Laboratory manages the 2001 Mars Odyssey mission for NASA's Office of Space Science, Washington, D.C. The Thermal Emission Imaging System (THEMIS) was developed by Arizona State University, Tempe, in collaboration with Raytheon Santa Barbara Remote Sensing. The THEMIS investigation is led by Dr. Philip Christensen at Arizona State University. Lockheed Martin Astronautics, Denver, is the prime contractor for the Odyssey project, and developed and built the orbiter. Mission operations are conducted jointly from Lockheed Martin and from JPL, a division of the California Institute of Technology in Pasadena.<p>Image information: VIS instrument. Latitude 27, Longitude 190.9 East (169.1 West). 19 meter/pixel resolution.<p><br /><br /><a href="http://photojournal.jpl.nasa.gov/catalog/PIA04454" onclick="window.open(this.href); return false;" title="Voir l'image PIA04454: Flooded Crater sur le site de la NASA">Voir l'image PIA04454: Flooded Crater sur le site de la NASA.</a></div>
PIA04454: Flooded Crater
<h1>PIA04455: Daedalia Planum</h1><div class="PIA04455" lang="en" style="width:481px;text-align:left;margin:auto;background-color:#000;padding:10px;max-height:150px;overflow:auto;"><p><a href="/figures/PIA04455_context.jpg"></a><br><p>Interesting textures on lava flows in Daedalia Planum, southwest of the Tharsis volcanoes.<p>Note: this THEMIS visual image has not been radiometrically nor geometrically calibrated for this preliminary release. An empirical correction has been performed to remove instrumental effects. A linear shift has been applied in the cross-track and down-track direction to approximate spacecraft and planetary motion. Fully calibrated and geometrically projected images will be released through the Planetary Data System in accordance with Project policies at a later time.<p>NASA's Jet Propulsion Laboratory manages the 2001 Mars Odyssey mission for NASA's Office of Space Science, Washington, D.C. The Thermal Emission Imaging System (THEMIS) was developed by Arizona State University, Tempe, in collaboration with Raytheon Santa Barbara Remote Sensing. The THEMIS investigation is led by Dr. Philip Christensen at Arizona State University. Lockheed Martin Astronautics, Denver, is the prime contractor for the Odyssey project, and developed and built the orbiter. Mission operations are conducted jointly from Lockheed Martin and from JPL, a division of the California Institute of Technology in Pasadena.<p>Image information: VIS instrument. Latitude -20.3, Longitude 226.1 East (133.9 West). 19 meter/pixel resolution.<p><br /><br /><a href="http://photojournal.jpl.nasa.gov/catalog/PIA04455" onclick="window.open(this.href); return false;" title="Voir l'image PIA04455: Daedalia Planum sur le site de la NASA">Voir l'image PIA04455: Daedalia Planum sur le site de la NASA.</a></div>
PIA04455: Daedalia Planum

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