Collection:
NASA Planetary Photo Journal Collection Collection NASA Planetary Photo Journal Collection Collection
Title:
A Tumultuous Past for Ganymede's Dark Terrain Title A Tumultuous Past for Ganymede's Dark Terrain Title
Original Caption Released with Image:
Dark terrain of Nicholson Regio on Jupiter's moon, Ganymede. On the left is a crater that has been torn apart by tectonic forces. A lane of ridges and grooves (probably extensional fault blocks) cuts through the crater and distorts its originally circular shape. Though such deformation is more typical of Ganymede's bright grooved terrain, this image demonstrates that extreme tectonic disruption has occurred in the satellite's dark terrain also. The pair of oblong craters on the right was formed by the impact of a gravitationally bound pair of asteroids or a split comet. The oblong shapes of the craters suggest that the impactors struck the surface at a shallow angle. Toward the top left, an old crater has been partially buried by dark ejecta tossed from another impact about 50 kilometers to the north of this image. North is to the top of the picture and the sun illuminates the surface from the right. The image, centered at 14 degrees south latitude and 352 degrees longitude, covers an area approximately 111 by 93 kilometers. The resolution is 180 meters per picture element. The image was taken on April 5, 1997 at 6 hours, 31 minutes, 44 seconds Universal Time at a range of 17,840 kilometers by the Solid State Imaging (SSI) system on NASA's Galileo spacecraft. The Jet Propulsion Laboratory, Pasadena, CA manages the Galileo mission for NASA's Office of Space Science, Washington, DC. This image and other images and data received from Galileo are posted on the World Wide Web, on the Galileo mission home page at URL http://galileo.jpl.nasa.gov . Background information and educational context for the images can be found at URL http://www.jpl.nasa.gov/galileo/sepo Original_Caption_Rel eased_with_Image Dark terrain of Nicholson Regio on Jupiter's moon, Ganymede. On the left is a crater that has been torn apart by tectonic forces. A lane of ridges and grooves (probably extensional fault blocks) cuts through the crater and distorts its originally circular shape. Though such deformation is more typical of Ganymede's bright grooved terrain, this image demonstrates that extreme tectonic disruption has occurred in the satellite's dark terrain also. The pair of oblong craters on the right was formed by the impact of a gravitationally bound pair of asteroids or a split comet. The oblong shapes of the craters suggest that the impactors struck the surface at a shallow angle. Toward the top left, an old crater has been partially buried by dark ejecta tossed from another impact about 50 kilometers to the north of this image. North is to the top of the picture and the sun illuminates the surface from the right. The image, centered at 14 degrees south latitude and 352 degrees longitude, covers an area approximately 111 by 93 kilometers. The resolution is 180 meters per picture element. The image was taken on April 5, 1997 at 6 hours, 31 minutes, 44 seconds Universal Time at a range of 17,840 kilometers by the Solid State Imaging (SSI) system on NASA's Galileo spacecraft. The Jet Propulsion Laboratory, Pasadena, CA manages the Galileo mission for NASA's Office of Space Science, Washington, DC. This image and other images and data received from Galileo are posted on the World Wide Web, on the Galileo mission home page at URL http://galileo.jpl.nasa.gov . Background information and educational context for the images can be found at URL http://www.jpl.nasa.gov/galileo/sepo Original Caption Released with Image
Addition Date:
1998-07-15 Addition_Date 1998-07-15 Addition Date
Produced By:
Brown University Produced_By Brown University Produced By
Mission:
Galileo Mission Galileo Mission
Spacecraft:
Galileo Orbiter Spacecraft Galileo Orbiter Spacecraft
Target Name:
Ganymede Target_Name Ganymede Target Name
Is a satellite of:
Jupiter Is_a_satellite_of Jupiter Is a satellite of
Instrument:
Solid-State Imaging Instrument Solid-State Imaging Instrument
Product Size:
615 samples x 519 lines Product_Size 615 samples x 519 lines Product Size
Primary Data Set:
Galileo EDRs Primary_Data_Set Galileo EDRs Primary Data Set
Producer ID:
P50034 MRPS89762 Producer_ID P50034 MRPS89762 Producer ID
facet_what:
Sun facet_what Sun facet_what
facet_what:
Crater facet_what Crater facet_what
facet_what:
Moon facet_what Moon facet_what
facet_what:
Jupiter facet_what Jupiter facet_what
facet_what:
Galileo facet_what Galileo facet_what
facet_what:
Galileo Orbiter facet_what Galileo Orbiter facet_what
facet_what:
Solid-State Imaging facet_what Solid-State Imaging facet_what
facet_what:
Ganymede facet_what Ganymede facet_what
facet_what:
Ganymede (Jupiter Moon) facet_what Ganymede (Jupiter Moon) facet_what
facet_where:
Jet Propulsion Laboratory facet_where Jet Propulsion Laboratory facet_where
facet_where:
Jupiter facet_where Jupiter facet_where
facet_where:
Washington facet_where Washington facet_where
facet_where:
Ganymede facet_where Ganymede facet_where
facet_where:
Jet Propulsion Laboratory (JPL) facet_where Jet Propulsion Laboratory (JPL) facet_where
facet_when:
April 5, 1997 facet_when April 5, 1997 facet_when
facet_when_year:
1997 facet_when_year 1997 facet_when_year
Image #:
PIA01612 Image_# PIA01612 Image #
UID:
SPD-PHOTJ-PIA01612 UID SPD-PHOTJ-PIA01612 UID
orignial url:
http://photojournal… orignial_url http://photojournal… orignial url

A Tumultuous Past for Ganymede's Dark Terrain

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A Tumultuous Past for Ganymede's Dark Terrain