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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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A Tough Grind
Title
A Tough Grind
Title
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Original Caption Released with Image:
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NASA's Mars Exploration Rover Spirit took the four images that make up this mosaic with its microscopic imager on sol 82. The mosaic reveals the drilled surface of the target called "New York" on the rock dubbed "Mazatzal." The rock abrasion tool ground for 3 hours and 45 minutes to create this 3.8 millimeter-deep (0.15 inch) hole. The exposed area is 4.5 centimeters (1.8 inches) in diameter.
Mazatzal was an interesting rock to grind because it has a lighter tone than the previously ground rocks "Adirondack" and "Humphrey," and because it looks different from its surrounding environment. Scientists hypothesized that Mazatzal's surface might be covered with a rind of weathered material. They drilled through this very top layer to reveal the underlying rock.
Because Mazatzal's surface was not even, the left half of the rock was penetrated more deeply than the right. As can be seen in this image, the right, darker portion of the rock is still covered by the rind material. Spirit completed a second grind at this location at a different angle to remove the remaining veneer from the right side and create an even deeper hole. Images of this second grind will be sent back to Earth in the next sol or two.
After the Final Grind
The image was acquired on sol 85 after the rover drilled into New York a second time with its rock abrasion tool. Remnants of the dark grey coating that covers Mazatzal's interior can be seen at the right side of the hole. The crack in the rock may have once contained fluids out of which minerals precipitated. Each image making up this mosaic is 3 centimeters (1.2 inches) across.
Original_Caption_Rel eased_with_Image
NASA's Mars Exploration Rover Spirit took the four images that make up this mosaic with its microscopic imager on sol 82. The mosaic reveals the drilled surface of the target called "New York" on the rock dubbed "Mazatzal." The rock abrasion tool ground for 3 hours and 45 minutes to create this 3.8 millimeter-deep (0.15 inch) hole. The exposed area is 4.5 centimeters (1.8 inches) in diameter.
Mazatzal was an interesting rock to grind because it has a lighter tone than the previously ground rocks "Adirondack" and "Humphrey," and because it looks different from its surrounding environment. Scientists hypothesized that Mazatzal's surface might be covered with a rind of weathered material. They drilled through this very top layer to reveal the underlying rock.
Because Mazatzal's surface was not even, the left half of the rock was penetrated more deeply than the right. As can be seen in this image, the right, darker portion of the rock is still covered by the rind material. Spirit completed a second grind at this location at a different angle to remove the remaining veneer from the right side and create an even deeper hole. Images of this second grind will be sent back to Earth in the next sol or two.
After the Final Grind
The image was acquired on sol 85 after the rover drilled into New York a second time with its rock abrasion tool. Remnants of the dark grey coating that covers Mazatzal's interior can be seen at the right side of the hole. The crack in the rock may have once contained fluids out of which minerals precipitated. Each image making up this mosaic is 3 centimeters (1.2 inches) across.
Original Caption Released with Image
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Image Credit:
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NASA/JPL
Image_Credit
NASA/JPL
Image Credit
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Produced By:
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JPL
Produced_By
JPL
Produced By
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Mission:
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Mars Exploration Rover (MER)
Mission
Mars Exploration Rover (MER)
Mission
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Spacecraft:
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Spirit
Spacecraft
Spirit
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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Microscopic Imager
Instrument
Microscopic Imager
Instrument
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Instrument:
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Rock Abrasion Tool (RAT)
Instrument
Rock Abrasion Tool (RAT)
Instrument
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Product Size:
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2031 samples x 2021 lines
Product_Size
2031 samples x 2021 lines
Product Size
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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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Earth
facet_what
Earth
facet_what
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facet_what:
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Spirit
facet_what
Spirit
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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Imager
facet_what
Imager
facet_what
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facet_what:
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Microscopic Imager
facet_what
Microscopic Imager
facet_what
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facet_what:
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Rock Abrasion Tool
facet_what
Rock Abrasion Tool
facet_what
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facet_what:
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RAT
facet_what
RAT
facet_what
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facet_what:
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Mars Exploration Rover (MER)
facet_what
Mars Exploration Rover (MER)
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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New York
facet_where
New York
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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Image #:
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PIA05658
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UID:
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SPD-PHOTJ-PIA05658
UID
SPD-PHOTJ-PIA05658
UID
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orignial url:
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orignial_url
orignial url
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