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Collection:
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NASA Planetary Photo Journal Collection
Collection
NASA Planetary Photo Journal Collection
Collection
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Title:
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Groovy Terrain in Mangala Valles
Title
Groovy Terrain in Mangala Valles
Title
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Original Caption Released with Image:
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When it was proposed to NASA in 1985, one of the goals of the Mars Global Surveyor (MGS) Mars Orbiter Camera (MOC) experiment was to take pictures with high enough resolution to be able to see large boulders on the planet's surface. For large martian outflow channels--believed by some to have been carved by giant floods several billion years ago--seeing boulders and measuring their size and distribution in the channels can tell geologists something about the nature of the flood--for example, how fast the water was moving, and, in some cases, how deep it was. But Mars doesn't always cooperate. The white box in the context image on the right shows the location of the high resolution MOC image on the left. The white box in the context frame is located among buttes and mesas within Mangala Valles, one of the large martian channels thought to have been carved by floods long ago. The high resolution view, however, offers no insight into the processes that formed Mangala Valles. Instead, the entire surface--mesa tops, buttes, and channel floor--are all covered-up with a thick blanket of wind-eroded, ridged and grooved material. Some of the buttes and mesas have boulders on their surfaces, and wind has hollowed-out circular depressions around these boulders. But the boulders in this case probably have nothing to do with the floods that might have formed Mangala Valles--they are boulders exposed in the bedrock contained beneath the ridged and grooved mantle that covers each butte and mesa. The dark streaks on slopes in this image are places where dry accumulations of dust have slid downhill, much like a snow avalanche. Similar streaks have been seen elsewhere on the dusty surfaces of Mars, and some have been found to change over time. For example, see Recent Movements: New Landslides in Less than 1 Martian year. This picture is located near 8.7°S, 151.2°W; it covers an area 3 km (1.9 mi) by 11.7 km (7.3 mi). North is toward the upper right, and illumination is from the upper left. This is a subframe of MOC image M11-01809, acquired January 13, 2000. To see what the raw MOC image data look like, visit the newest data releases (for Mission Subphases M07 - M12, covering September 1999 through February 2000) in the MOC GALLERY.
Original_Caption_Rel eased_with_Image
When it was proposed to NASA in 1985, one of the goals of the Mars Global Surveyor (MGS) Mars Orbiter Camera (MOC) experiment was to take pictures with high enough resolution to be able to see large boulders on the planet's surface. For large martian outflow channels--believed by some to have been carved by giant floods several billion years ago--seeing boulders and measuring their size and distribution in the channels can tell geologists something about the nature of the flood--for example, how fast the water was moving, and, in some cases, how deep it was. But Mars doesn't always cooperate. The white box in the context image on the right shows the location of the high resolution MOC image on the left. The white box in the context frame is located among buttes and mesas within Mangala Valles, one of the large martian channels thought to have been carved by floods long ago. The high resolution view, however, offers no insight into the processes that formed Mangala Valles. Instead, the entire surface--mesa tops, buttes, and channel floor--are all covered-up with a thick blanket of wind-eroded, ridged and grooved material. Some of the buttes and mesas have boulders on their surfaces, and wind has hollowed-out circular depressions around these boulders. But the boulders in this case probably have nothing to do with the floods that might have formed Mangala Valles--they are boulders exposed in the bedrock contained beneath the ridged and grooved mantle that covers each butte and mesa. The dark streaks on slopes in this image are places where dry accumulations of dust have slid downhill, much like a snow avalanche. Similar streaks have been seen elsewhere on the dusty surfaces of Mars, and some have been found to change over time. For example, see Recent Movements: New Landslides in Less than 1 Martian year. This picture is located near 8.7°S, 151.2°W; it covers an area 3 km (1.9 mi) by 11.7 km (7.3 mi). North is toward the upper right, and illumination is from the upper left. This is a subframe of MOC image M11-01809, acquired January 13, 2000. To see what the raw MOC image data look like, visit the newest data releases (for Mission Subphases M07 - M12, covering September 1999 through February 2000) in the MOC GALLERY. Original Caption Released with Image
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Addition Date:
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2000-10-16
Addition_Date
2000-10-16
Addition Date
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Image Credit:
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NASA/JPL/MSSS
Image_Credit
NASA/JPL/MSSS
Image Credit
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Produced By:
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Malin Space Science Systems
Produced_By
Malin Space Science Systems
Produced By
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Mission:
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Mars Global Surveyor (MGS)
Mission
Mars Global Surveyor (MGS)
Mission
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Spacecraft:
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Mars Global Surveyor Orbiter
Spacecraft
Mars Global Surveyor Orbiter
Spacecraft
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Target Name:
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Mars
Target_Name
Mars
Target Name
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Is a satellite of:
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Sol (our sun)
Is_a_satellite_of
Sol (our sun)
Is a satellite of
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Instrument:
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Mars Orbiter Camera
Instrument
Mars Orbiter Camera
Instrument
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Product Size:
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672 samples x 2603 lines
Product_Size
672 samples x 2603 lines
Product Size
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Primary Data Set:
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MGS EDRs
Primary_Data_Set
MGS EDRs
Primary Data Set
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Producer ID:
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MOC2-253
Producer_ID
MOC2-253
Producer ID
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facet_what:
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Sun
facet_what
Sun
facet_what
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facet_what:
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Mars
facet_what
Mars
facet_what
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facet_what:
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Surveyor
facet_what
Surveyor
facet_what
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facet_what:
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FAST
facet_what
FAST
facet_what
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facet_what:
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Valles
facet_what
Valles
facet_what
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facet_what:
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Mars Global Surveyor Orbiter (MGS)
facet_what
Mars Global Surveyor Orbiter (MGS)
facet_what
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facet_what:
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Mars Orbiter Camera (MOC)
facet_what
Mars Orbiter Camera (MOC)
facet_what
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facet_where:
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Mars
facet_where
Mars
facet_where
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facet_where:
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Jet Propulsion Laboratory (JPL)
facet_where
Jet Propulsion Laboratory (JPL)
facet_where
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facet_when:
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1985
facet_when
1985
facet_when
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facet_when:
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September 1999
facet_when
September 1999
facet_when
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facet_when:
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February 2000
facet_when
February 2000
facet_when
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facet_when:
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January 13, 2000
facet_when
January 13, 2000
facet_when
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facet_when_year:
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1999
facet_when_year
1999
facet_when_year
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facet_when_year:
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2000
facet_when_year
2000
facet_when_year
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facet_when_year:
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1985
facet_when_year
1985
facet_when_year
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Image #:
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PIA02813
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UID:
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SPD-PHOTJ-PIA02813
UID
SPD-PHOTJ-PIA02813
UID
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orignial url:
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orignial_url
orignial url
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