North Polar Ice
Caption:
25 December 2004
For 25 December, the MOC team thought that a visit to a north polar site would be timely. This Mars Global Surveyor (MGS) Mars Orbiter Camera (MOC) image shows, at about 1.5 meters per pixel (~5 feet per pixel) resolution, a view of the north polar ice cap of Mars. That the material includes water ice has been known since the mid-1970s, when Viking orbiter observations confirmed that the cap gives off water vapor in the summertime, as the ice is subliming away. The surface shown here, observed by MOC during northern summer in November 2004, is pitted and somewhat grooved. Dark material on pit floors might be trapped, windblown dust. The picture covers an area about 1 km (0.62 mi) across, and is located near 86.8°N, 293.1°W. Sunlight illuminates the scene from the lower left.
Cataloging Keywords:
| Name |
Value |
Additional Values |
| Target |
Mars |
|
| System |
|
|
| Target Type |
Planet |
|
| Mission |
Mars Global Surveyor (MGS) |
Viking |
| Instrument Host |
Mars Global Surveyor |
|
| Host Type |
Orbiter |
|
| Instrument |
Mars Orbiter Camera (MOC) |
|
| Detector |
|
|
| Extra Keywords |
Dust, Grayscale, Water |
| Acquisition Date |
|
| Release Date |
2004-12-25 |
| Date in Caption |
2004-12-25 |
|
| Image Credit |
NASA/JPL/Malin Space Science Systems |
| Source |
photojournal.jpl.nasa.gov/catalog/PIA07150 |
| Identifier |
PIA07150 |
