Mission Mars Global Surveyor - 9

<h1>PIA07449: Martian Trough</h1><div class="PIA07449" lang="en" style="width:579px;text-align:left;margin:auto;background-color:#000;padding:10px;max-height:150px;overflow:auto;"><p>9 March 2005 <br />This Mars Global Surveyor (MGS) Mars Orbiter Camera (MOC) image shows a trough in the Labyrinthus Noctis region.</p><p>Location near: 1.5°S, 92.5°W <br />Image width: ~3 km (~1.9 mi) <br />Illumination from: upper left <br />Season: Southern Winter <br /></p><br /><br /><a href="http://photojournal.jpl.nasa.gov/catalog/PIA07449" onclick="window.open(this.href); return false;" title="Voir l'image PIA07449: Martian Trough sur le site de la NASA">Voir l'image PIA07449: Martian Trough sur le site de la NASA.</a></div>
PIA07449: Martian Trough
<h1>PIA07450: Collapse Features</h1><div class="PIA07450" lang="en" style="width:778px;text-align:left;margin:auto;background-color:#000;padding:10px;max-height:150px;overflow:auto;"><p>10 March 2005 <br />This Mars Global Surveyor (MGS) Mars Orbiter Camera (MOC) image shows the intersection of channels formed by collapse on the northeastern flank of Ascraeus Mons.</p><p>Location near: 14.2°N, 100.7°W <br />Image width: ~3 km (~1.9 mi) <br />Illumination from: lower left <br />Season: Northern Summer <br /></p><br /><br /><a href="http://photojournal.jpl.nasa.gov/catalog/PIA07450" onclick="window.open(this.href); return false;" title="Voir l'image PIA07450: Collapse Features sur le site de la NASA">Voir l'image PIA07450: Collapse Features sur le site de la NASA.</a></div>
PIA07450: Collapse Features
<h1>PIA07454: Meridiani Valleys</h1><div class="PIA07454" lang="en" style="width:495px;text-align:left;margin:auto;background-color:#000;padding:10px;max-height:150px;overflow:auto;"><p>10 March 2005 <br />This Mars Global Surveyor (MGS) Mars Orbiter Camera (MOC) image shows layered sedimentary rocks and the traces of valleys that were once underneath those rocks in northwestern Sinus Meridiani.</p><p>Location near: 4.5°N, 2.4°W <br />Image width: ~3 km (~1.9 mi) <br />Illumination from: upper left <br />Season: Northern Summer <br /></p><br /><br /><a href="http://photojournal.jpl.nasa.gov/catalog/PIA07454" onclick="window.open(this.href); return false;" title="Voir l'image PIA07454: Meridiani Valleys sur le site de la NASA">Voir l'image PIA07454: Meridiani Valleys sur le site de la NASA.</a></div>
PIA07454: Meridiani Valleys
<h1>PIA07472: Eumenides Dorsum Yardangs</h1><div class="PIA07472" lang="en" style="width:654px;text-align:left;margin:auto;background-color:#000;padding:10px;max-height:150px;overflow:auto;"><p>12 March 2005 <br />This Mars Global Surveyor (MGS) Mars Orbiter Camera (MOC) image shows small wind-eroded ridges, known to geologists as yardangs, in the Eumenides Dorsum region.</p><p>Location near: 3.6°N, 150.5°W <br />Image width: ~3 km (~1.9 mi) <br />Illumination from: upper left <br />Season: Northern Summer <br /></p><br /><br /><a href="http://photojournal.jpl.nasa.gov/catalog/PIA07472" onclick="window.open(this.href); return false;" title="Voir l'image PIA07472: Eumenides Dorsum Yardangs sur le site de la NASA">Voir l'image PIA07472: Eumenides Dorsum Yardangs sur le site de la NASA.</a></div>
PIA07472: Eumenides Dorsum Yardangs
<h1>PIA07473: Exhumed Flows</h1><div class="PIA07473" lang="en" style="width:778px;text-align:left;margin:auto;background-color:#000;padding:10px;max-height:150px;overflow:auto;"><p>13 March 2005 <br />This Mars Global Surveyor (MGS) Mars Orbiter Camera (MOC) image shows exhumation of flow surfaces from beneath a material that was eroded by wind in the Cerberus/Zephyria region. The origin of the flow material has been a subject of debate among Mars scientists; it may have been very fluid lava or mud flows. In either case the material was buried for some time.</p><p>Location near: 34.2°N, 207.9°W <br />Image width: ~3 km (~1.9 mi) <br />Illumination from: upper left <br />Season: Northern Summer <br /></p><br /><br /><a href="http://photojournal.jpl.nasa.gov/catalog/PIA07473" onclick="window.open(this.href); return false;" title="Voir l'image PIA07473: Exhumed Flows sur le site de la NASA">Voir l'image PIA07473: Exhumed Flows sur le site de la NASA.</a></div>
PIA07473: Exhumed Flows
<h1>PIA07474: North Polar Dunes</h1><div class="PIA07474" lang="en" style="width:533px;text-align:left;margin:auto;background-color:#000;padding:10px;max-height:150px;overflow:auto;"><p>14 March 2005 <br />This Mars Global Surveyor (MGS) Mars Orbiter Camera (MOC) image shows north polar dune morphologies.</p><p>Location near: 78.0°N, 256.1°W <br />Image width: ~3 km (~1.9 mi) <br />Illumination from: lower left <br />Season: Northern Summer <br /></p><br /><br /><a href="http://photojournal.jpl.nasa.gov/catalog/PIA07474" onclick="window.open(this.href); return false;" title="Voir l'image PIA07474: North Polar Dunes sur le site de la NASA">Voir l'image PIA07474: North Polar Dunes sur le site de la NASA.</a></div>
PIA07474: North Polar Dunes
<h1>PIA07476: Sirenum Troughs</h1><div class="PIA07476" lang="en" style="width:800px;text-align:left;margin:auto;background-color:#000;padding:10px;max-height:150px;overflow:auto;"><p>16 March 2005 <br />This Mars Global Surveyor (MGS) Mars Orbiter Camera (MOC) image shows layered material in the walls of troughs in the Sirenum Fossae region. Also notice large windblown ripples and boulders on their floors.</p><p>Location near: 31.7°S, 151.9°W <br />Image width: ~3 km (~1.9 mi) <br />Illumination from: upper left <br />Season: Southern Winter <br /></p><br /><br /><a href="http://photojournal.jpl.nasa.gov/catalog/PIA07476" onclick="window.open(this.href); return false;" title="Voir l'image PIA07476: Sirenum Troughs sur le site de la NASA">Voir l'image PIA07476: Sirenum Troughs sur le site de la NASA.</a></div>
PIA07476: Sirenum Troughs
<h1>PIA07477: South Polar Cap</h1><div class="PIA07477" lang="en" style="width:478px;text-align:left;margin:auto;background-color:#000;padding:10px;max-height:150px;overflow:auto;"><p>17 March 2005 <br />This Mars Global Surveyor (MGS) Mars Orbiter Camera (MOC) image shows mesas and pits formed by sublimation of carbon dioxide of the south polar cap.</p><p>Location near: 85.8°S, 351.5°W <br />Image width: ~2 km (~1.2 mi) <br />Illumination from: upper left <br />Season: Southern Summer <br /></p><br /><br /><a href="http://photojournal.jpl.nasa.gov/catalog/PIA07477" onclick="window.open(this.href); return false;" title="Voir l'image PIA07477: South Polar Cap sur le site de la NASA">Voir l'image PIA07477: South Polar Cap sur le site de la NASA.</a></div>
PIA07477: South Polar Cap
<h1>PIA07479: Frost on Dunes</h1><div class="PIA07479" lang="en" style="width:489px;text-align:left;margin:auto;background-color:#000;padding:10px;max-height:150px;overflow:auto;"><p>18 March 2005 <br />This Mars Global Surveyor (MGS) Mars Orbiter Camera (MOC) image shows dark dunes on a crater floor during the southern spring. Some of the dunes have frost on their south-facing slopes.</p><p>Location near: 52.3°S, 326.7°W <br />Image width: ~3 km (~1.9 mi) <br />Illumination from: upper left <br />Season: Southern Spring <br /></p><br /><br /><a href="http://photojournal.jpl.nasa.gov/catalog/PIA07479" onclick="window.open(this.href); return false;" title="Voir l'image PIA07479: Frost on Dunes sur le site de la NASA">Voir l'image PIA07479: Frost on Dunes sur le site de la NASA.</a></div>
PIA07479: Frost on Dunes
<h1>PIA07481: Dunes of the Frozen North</h1><div class="PIA07481" lang="en" style="width:480px;text-align:left;margin:auto;background-color:#000;padding:10px;max-height:150px;overflow:auto;"><p>19 March 2005 <br />This Mars Global Surveyor (MGS) Mars Orbiter Camera (MOC) image shows dark north polar dunes overlying other materials in the north polar region.</p><p>Location near: 79.1°N, 228.8°W <br />Image width: ~3 km (~1.9 mi) <br />Illumination from: lower left <br />Season: Northern Summer <br /></p><br /><br /><a href="http://photojournal.jpl.nasa.gov/catalog/PIA07481" onclick="window.open(this.href); return false;" title="Voir l'image PIA07481: Dunes of the Frozen North sur le site de la NASA">Voir l'image PIA07481: Dunes of the Frozen North sur le site de la NASA.</a></div>
PIA07481: Dunes of the Frozen North
<h1>PIA07482: Layers of Candor</h1><div class="PIA07482" lang="en" style="width:307px;text-align:left;margin:auto;background-color:#000;padding:10px;max-height:150px;overflow:auto;"><p>20 March 2005 <br />This Mars Global Surveyor (MGS) Mars Orbiter Camera (MOC) image shows outcrops of light-toned sedimentary rocks in west Candor Chasma.</p><p>Location near: 6.6°S, 75.7°W <br />Image width: ~3 km (~1.9 mi) <br />Illumination from: upper left <br />Season: Southern Winter <br /></p><br /><br /><a href="http://photojournal.jpl.nasa.gov/catalog/PIA07482" onclick="window.open(this.href); return false;" title="Voir l'image PIA07482: Layers of Candor sur le site de la NASA">Voir l'image PIA07482: Layers of Candor sur le site de la NASA.</a></div>
PIA07482: Layers of Candor
<h1>PIA07483: Dunes of the Frozen North</h1><div class="PIA07483" lang="en" style="width:384px;text-align:left;margin:auto;background-color:#000;padding:10px;max-height:150px;overflow:auto;"><p>21 March 2005 <br />This Mars Global Surveyor (MGS) Mars Orbiter Camera (MOC) image shows dark north polar dunes overlying other materials in the north polar region.</p><p>Location near: 79.1°N, 228.8°W <br />Image width: ~3 km (~1.9 mi) <br />Illumination from: lower left <br />Season: Northern Summer <br /></p><br /><br /><a href="http://photojournal.jpl.nasa.gov/catalog/PIA07483" onclick="window.open(this.href); return false;" title="Voir l'image PIA07483: Dunes of the Frozen North sur le site de la NASA">Voir l'image PIA07483: Dunes of the Frozen North sur le site de la NASA.</a></div>
PIA07483: Dunes of the Frozen North
<h1>PIA07494: Tharsis Channels</h1><div class="PIA07494" lang="en" style="width:435px;text-align:left;margin:auto;background-color:#000;padding:10px;max-height:150px;overflow:auto;"><p>23 March 2005 <br />This Mars Global Surveyor (MGS) Mars Orbiter Camera (MOC) image shows channels on the plains southeast of Olympus Mons.</p><p>Location near: 16.0°N, 129.3°W <br />Image width: ~3 km (~1.9 mi) <br />Illumination from: lower left <br />Season: Northern Autumn<br /></p><br /><br /><a href="http://photojournal.jpl.nasa.gov/catalog/PIA07494" onclick="window.open(this.href); return false;" title="Voir l'image PIA07494: Tharsis Channels sur le site de la NASA">Voir l'image PIA07494: Tharsis Channels sur le site de la NASA.</a></div>
PIA07494: Tharsis Channels
<h1>PIA07495: Becquerel Dunes and Layers</h1><div class="PIA07495" lang="en" style="width:578px;text-align:left;margin:auto;background-color:#000;padding:10px;max-height:150px;overflow:auto;"><p>24 March 2005 <br />This Mars Global Surveyor (MGS) Mars Orbiter Camera (MOC) image shows dark dunes and light-toned sedimentary rock on the floor of Becquerel Crater.</p><p>Location near: 21.4°N, 8.3°W <br />Image width: ~3 km (~1.9 mi) <br />Illumination from: lower left <br />Season: Northern Summer<br /></p><br /><br /><a href="http://photojournal.jpl.nasa.gov/catalog/PIA07495" onclick="window.open(this.href); return false;" title="Voir l'image PIA07495: Becquerel Dunes and Layers sur le site de la NASA">Voir l'image PIA07495: Becquerel Dunes and Layers sur le site de la NASA.</a></div>
PIA07495: Becquerel Dunes and Layers
<h1>PIA07501: Chasma Boreale</h1><div class="PIA07501" lang="en" style="width:522px;text-align:left;margin:auto;background-color:#000;padding:10px;max-height:150px;overflow:auto;"><p>25 March 2005 <br />This Mars Global Surveyor (MGS) Mars Orbiter Camera (MOC) image shows layers and dunes in Chasma Boreale, a large depression in the north polar region.</p><p>Location near: 85.2°N, 10.4°W <br />Image width: ~3 km (~1.9 mi) <br />Illumination from: lower left <br />Season: Northern Summer<br /></p><br /><br /><a href="http://photojournal.jpl.nasa.gov/catalog/PIA07501" onclick="window.open(this.href); return false;" title="Voir l'image PIA07501: Chasma Boreale sur le site de la NASA">Voir l'image PIA07501: Chasma Boreale sur le site de la NASA.</a></div>
PIA07501: Chasma Boreale
<h1>PIA07502: Herschel Dunes</h1><div class="PIA07502" lang="en" style="width:800px;text-align:left;margin:auto;background-color:#000;padding:10px;max-height:150px;overflow:auto;"><p>26 March 2005 <br />This Mars Global Surveyor (MGS) Mars Orbiter Camera (MOC) image shows windblown sand dunes on the southeastern floor of Herschel Crater.</p><p>Location near: 15.7°S, 228.9°W <br />Image width: ~3 km (~1.9 mi) <br />Illumination from: upper left <br />Season: Southern Winter <br /></p><br /><br /><a href="http://photojournal.jpl.nasa.gov/catalog/PIA07502" onclick="window.open(this.href); return false;" title="Voir l'image PIA07502: Herschel Dunes sur le site de la NASA">Voir l'image PIA07502: Herschel Dunes sur le site de la NASA.</a></div>
PIA07502: Herschel Dunes
<h1>PIA07503: North Polar Layers</h1><div class="PIA07503" lang="en" style="width:309px;text-align:left;margin:auto;background-color:#000;padding:10px;max-height:150px;overflow:auto;"><p>27 March 2005 <br />This Mars Global Surveyor (MGS) Mars Orbiter Camera (MOC) image shows layered material of the north polar region.</p><p>Location near: 84.6°N, 225.2°W <br />Image width: ~3 km (~1.9 mi) <br />Illumination from: lower left <br />Season: Northern Summer<br /></p><br /><br /><a href="http://photojournal.jpl.nasa.gov/catalog/PIA07503" onclick="window.open(this.href); return false;" title="Voir l'image PIA07503: North Polar Layers sur le site de la NASA">Voir l'image PIA07503: North Polar Layers sur le site de la NASA.</a></div>
PIA07503: North Polar Layers
<h1>PIA07504: Ejecta Boulders</h1><div class="PIA07504" lang="en" style="width:800px;text-align:left;margin:auto;background-color:#000;padding:10px;max-height:150px;overflow:auto;"><p>28 March 2005 <br />This Mars Global Surveyor (MGS) Mars Orbiter Camera (MOC) image shows a 1.5 meters per pixel (5 ft/pixel) view of a ~1 km wide crater. Boulders ejected by the impact that formed the crater can be seen in the ejecta blanket. </p><p>Location near: 34.1°N, 247.7°W <br />Image width: ~3 km (~1.9 mi) <br />Illumination from: lower left <br />Season: Northern Spring <br /></p><br /><br /><a href="http://photojournal.jpl.nasa.gov/catalog/PIA07504" onclick="window.open(this.href); return false;" title="Voir l'image PIA07504: Ejecta Boulders sur le site de la NASA">Voir l'image PIA07504: Ejecta Boulders sur le site de la NASA.</a></div>
PIA07504: Ejecta Boulders
<h1>PIA07507: Dunes of the North</h1><div class="PIA07507" lang="en" style="width:544px;text-align:left;margin:auto;background-color:#000;padding:10px;max-height:150px;overflow:auto;"><p>30 March 2005 <br />This Mars Global Surveyor (MGS) Mars Orbiter Camera (MOC) image shows linear and barchan sand dunes in Chasma Boreale, a broad erosional trough in the martian north polar region. Winds responsible for these dunes generally blow from upper right toward the lower left. Martian dunes tend to be darker than their counterparts on Earth because they are composed of darker, iron-bearing minerals and rock fragments.</p><p>Location near: 84.2°N, 37.9°W <br />Image width: ~3 km (~1.9 mi) <br />Illumination from: lower left <br />Season: Northern Summer <br /></p><br /><br /><a href="http://photojournal.jpl.nasa.gov/catalog/PIA07507" onclick="window.open(this.href); return false;" title="Voir l'image PIA07507: Dunes of the North sur le site de la NASA">Voir l'image PIA07507: Dunes of the North sur le site de la NASA.</a></div>
PIA07507: Dunes of the North
<h1>PIA07508: Crater with Windstreak</h1><div class="PIA07508" lang="en" style="width:565px;text-align:left;margin:auto;background-color:#000;padding:10px;max-height:150px;overflow:auto;"><p>31 March 2005 <br />This Mars Global Surveyor (MGS) Mars Orbiter Camera (MOC) image shows a 1.2 km north mid-latitude crater with a bright wind streak. </p><p>Location near: 30.8°N, 131.8°W <br />Image width: ~3 km (~1.9 mi) <br />Illumination from: lower left <br />Season: Northern Summer <br /></p><br /><br /><a href="http://photojournal.jpl.nasa.gov/catalog/PIA07508" onclick="window.open(this.href); return false;" title="Voir l'image PIA07508: Crater with Windstreak sur le site de la NASA">Voir l'image PIA07508: Crater with Windstreak sur le site de la NASA.</a></div>
PIA07508: Crater with Windstreak
<h1>PIA07814: Northern Bands</h1><div class="PIA07814" lang="en" style="width:389px;text-align:left;margin:auto;background-color:#000;padding:10px;max-height:150px;overflow:auto;"><p>1 April 2005<br />This Mars Global Surveyor (MGS) Mars Orbiter Camera (MOC) image shows layers and possibly buried dunes in the north polar region.</p><p>Location near: 30 74.3°N, 264.8°W <br />Image width: ~3 km (~1.9 mi) <br />Illumination from: lower left <br />Season: Northern Summer <br /></p><br /><br /><a href="http://photojournal.jpl.nasa.gov/catalog/PIA07814" onclick="window.open(this.href); return false;" title="Voir l'image PIA07814: Northern Bands sur le site de la NASA">Voir l'image PIA07814: Northern Bands sur le site de la NASA.</a></div>
PIA07814: Northern Bands
<h1>PIA07815: Crater Streaks</h1><div class="PIA07815" lang="en" style="width:328px;text-align:left;margin:auto;background-color:#000;padding:10px;max-height:150px;overflow:auto;"><p>2 April 2005 <br />This Mars Global Surveyor (MGS) Mars Orbiter Camera (MOC) image shows impact craters and wind streaks in Daedalia Planum.</p><p>Location near: 14.6°S, 131.9°W <br />Image width: ~3 km (~1.9 mi) <br />Illumination from: upper left <br />Season: Southern Winter <br /></p><br /><br /><a href="http://photojournal.jpl.nasa.gov/catalog/PIA07815" onclick="window.open(this.href); return false;" title="Voir l'image PIA07815: Crater Streaks sur le site de la NASA">Voir l'image PIA07815: Crater Streaks sur le site de la NASA.</a></div>
PIA07815: Crater Streaks
<h1>PIA07816: Buttes near Meridiani</h1><div class="PIA07816" lang="en" style="width:287px;text-align:left;margin:auto;background-color:#000;padding:10px;max-height:150px;overflow:auto;"><p>3 April 2005 <br />This Mars Global Surveyor (MGS) Mars Orbiter Camera (MOC) image shows buttes and two eroded impact craters on the plains west of Sinus Meridiani. The buttes and bedrock here are composed of light-toned, layered, sedimentary rock similar to the bedrock at the Mars Exploration Rover, Opportunity, site. The layers can be seen in the walls of the two large, dark-floored craters.</p><p>Location near: 0.5°N, 8.0°W <br />Image width: ~3 km (~1.9 mi) <br />Illumination from: upper left <br />Season: Northern Summer <br /></p><br /><br /><a href="http://photojournal.jpl.nasa.gov/catalog/PIA07816" onclick="window.open(this.href); return false;" title="Voir l'image PIA07816: Buttes near Meridiani sur le site de la NASA">Voir l'image PIA07816: Buttes near Meridiani sur le site de la NASA.</a></div>
PIA07816: Buttes near Meridiani
<h1>PIA07817: Xanthe Valley</h1><div class="PIA07817" lang="en" style="width:245px;text-align:left;margin:auto;background-color:#000;padding:10px;max-height:150px;overflow:auto;"><p>4 April 2005 <br />This Mars Global Surveyor (MGS) Mars Orbiter Camera (MOC) image shows a valley in Xanthe Terra.</p><p>Location near: 5.2°N, 46.0°W <br />Image width: ~3 km (~1.9 mi) <br />Illumination from: upper left <br />Season: Northern Summer <br /></p><br /><br /><a href="http://photojournal.jpl.nasa.gov/catalog/PIA07817" onclick="window.open(this.href); return false;" title="Voir l'image PIA07817: Xanthe Valley sur le site de la NASA">Voir l'image PIA07817: Xanthe Valley sur le site de la NASA.</a></div>
PIA07817: Xanthe Valley
<h1>PIA07821: Hephaestus Troughs</h1><div class="PIA07821" lang="en" style="width:374px;text-align:left;margin:auto;background-color:#000;padding:10px;max-height:150px;overflow:auto;"><p>6 April 2005 <br />This Mars Global Surveyor (MGS) Mars Orbiter Camera (MOC) image shows two troughs in the Hephaestus Fossae region surrounded by heavily cratered terrain.</p><p>Location near: 22.7°N, 239.0°W <br />Image width: ~3 km (~1.9 mi) <br />Illumination from: upper left <br />Season: Northern Summer <br /></p><br /><br /><a href="http://photojournal.jpl.nasa.gov/catalog/PIA07821" onclick="window.open(this.href); return false;" title="Voir l'image PIA07821: Hephaestus Troughs sur le site de la NASA">Voir l'image PIA07821: Hephaestus Troughs sur le site de la NASA.</a></div>
PIA07821: Hephaestus Troughs
<h1>PIA07826: Olympus Flows</h1><div class="PIA07826" lang="en" style="width:549px;text-align:left;margin:auto;background-color:#000;padding:10px;max-height:150px;overflow:auto;"><p>7 April 2005 <br />This Mars Global Surveyor (MGS) Mars Orbiter Camera (MOC) image shows channels carved into the plains southeast of the large volcano, Olympus Mons. The fluid that created these landforms flowed from upper right toward the lower left, but its nature is unknown. Today, the entire scene is mantled with dust.</p><p>Location near: 16.0°N, 129.3°W <br />Image width: ~3 km (~1.9 mi) <br />Illumination from: lower left <br />Season: Northern Autumn <br /></p><br /><br /><a href="http://photojournal.jpl.nasa.gov/catalog/PIA07826" onclick="window.open(this.href); return false;" title="Voir l'image PIA07826: Olympus Flows sur le site de la NASA">Voir l'image PIA07826: Olympus Flows sur le site de la NASA.</a></div>
PIA07826: Olympus Flows
<h1>PIA07827: Craters and Winds</h1><div class="PIA07827" lang="en" style="width:512px;text-align:left;margin:auto;background-color:#000;padding:10px;max-height:150px;overflow:auto;"><p>8 April 2005 <br />This Mars Global Surveyor (MGS) Mars Orbiter Camera (MOC) image shows craters with wind streaks in Acidalia Planitia. The winds responsible for the streaks blew from the upper right (northeast).</p><p>Location near: 37.1°N, 36.8°W <br />Image width: ~3 km (~1.9 mi) <br />Illumination from: lower left <br />Season: Northern Summer <br /></p><br /><br /><a href="http://photojournal.jpl.nasa.gov/catalog/PIA07827" onclick="window.open(this.href); return false;" title="Voir l'image PIA07827: Craters and Winds sur le site de la NASA">Voir l'image PIA07827: Craters and Winds sur le site de la NASA.</a></div>
PIA07827: Craters and Winds
<h1>PIA07834: Martian Fingerprints</h1><div class="PIA07834" lang="en" style="width:640px;text-align:left;margin:auto;background-color:#000;padding:10px;max-height:150px;overflow:auto;"><p>9 April 2005 <br />This Mars Global Surveyor (MGS) Mars Orbiter Camera (MOC) image shows patterned ground on the martian northern plains. The circular features are buried meteor impact craters; the small dark dots associated with them are boulders. The dark feature at left center is a wind streak.</p><p>Location near: 75.1°N, 303.0°W <br />Image width: ~3 km (~1.9 mi) <br />Illumination from: lower left <br />Season: Northern Summer <br /></p><br /><br /><a href="http://photojournal.jpl.nasa.gov/catalog/PIA07834" onclick="window.open(this.href); return false;" title="Voir l'image PIA07834: Martian Fingerprints sur le site de la NASA">Voir l'image PIA07834: Martian Fingerprints sur le site de la NASA.</a></div>
PIA07834: Martian Fingerprints
<h1>PIA07835: North Polar Dunes</h1><div class="PIA07835" lang="en" style="width:689px;text-align:left;margin:auto;background-color:#000;padding:10px;max-height:150px;overflow:auto;"><p>10 April 2005 <br />This Mars Global Surveyor (MGS) Mars Orbiter Camera (MOC) image shows low-albedo sand dunes in the north polar region. The slip faces on the dunes face toward the lower left, indicating that the dominant winds in this region blow or blew from the upper right.</p><p>Location near: 82.4°N, 46.5°W <br />Image width: ~3 km (~1.9 mi) <br />Illumination from: lower left <br />Season: Northern Summer <br /></p><br /><br /><a href="http://photojournal.jpl.nasa.gov/catalog/PIA07835" onclick="window.open(this.href); return false;" title="Voir l'image PIA07835: North Polar Dunes sur le site de la NASA">Voir l'image PIA07835: North Polar Dunes sur le site de la NASA.</a></div>
PIA07835: North Polar Dunes
<h1>PIA07836: Dark-Rimmed Crater</h1><div class="PIA07836" lang="en" style="width:512px;text-align:left;margin:auto;background-color:#000;padding:10px;max-height:150px;overflow:auto;"><p>11 April 2005 <br />This Mars Global Surveyor (MGS) Mars Orbiter Camera (MOC) image shows a nearly-filled impact crater on the northern plains.</p><p>Location near: 47.3°N, 294.0°W <br />Image width: ~3 km (~1.9 mi) <br />Illumination from: lower left <br />Season: Northern Summer <br /></p><br /><br /><a href="http://photojournal.jpl.nasa.gov/catalog/PIA07836" onclick="window.open(this.href); return false;" title="Voir l'image PIA07836: Dark-Rimmed Crater sur le site de la NASA">Voir l'image PIA07836: Dark-Rimmed Crater sur le site de la NASA.</a></div>
PIA07836: Dark-Rimmed Crater

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