PIA21471: Landslides on Ceres
 Target Name:  Ceres
 Is a satellite of:  Dwarf Planet
 Mission:  Dawn
 Spacecraft:  Dawn
 Instrument:  Framing Camera
 Product Size:  2764 x 1024 pixels (w x h)
 Produced By:  JPL
 Full-Res TIFF:  PIA21471.tif (2.835 MB)
 Full-Res JPEG:  PIA21471.jpg (596.7 kB)

Click on the image above to download a moderately sized image in JPEG format (possibly reduced in size from original)

Original Caption Released with Image:

click here for larger version for PIA21471click here for larger version for PIA21471click here for larger version for PIA21471
Figure 1
Image with scale
Figure 2
Image with scale
Figure 3
Image with scale
Click on an individual image for larger image

NASA's Dawn spacecraft has revealed many landslides on Ceres, which researchers interpret to have been shaped by a significant amount of water ice. A 2017 study in the journal Nature Geoscience classifies three types of these debris flows.

Figure 1 (left in the montage) shows an example of "Type I" flow features, which are relatively round and large, have thick "toes" at their ends. They look similar to rock glaciers and icy landslides on Earth. Type I landslides are mostly found at high latitudes, which is also where the most ice is thought to reside near Ceres' surface.

Figure 2 (center) shows an example of a "Type II" flow feature. Type II features are often thinner and longer than Type I, and are the most common type of landslide on Ceres. They appear more like the avalanches seen on Earth.

Figure 3 (right) shows an example of a "Type III" flow feature at Datan Crater. The study authors interpret Ceres' Type III landslides to involve melted ice, although scientists do not know if they actually contain liquid water. The authors think Type III landslides are related to impact craters, and may have formed during impact events into the ice on Ceres. The features resemble fluid material ejected from craters in the icy regions of Mars and Jupiter's moon Ganymede.

Dawn's mission is managed by JPL for NASA's Science Mission Directorate in Washington. Dawn is a project of the directorate's Discovery Program, managed by NASA's Marshall Space Flight Center in Huntsville, Alabama. UCLA is responsible for overall Dawn mission science. Orbital ATK, Inc., in Dulles, Virginia, designed and built the spacecraft. The German Aerospace Center, the Max Planck Institute for Solar System Research, the Italian Space Agency and the Italian National Astrophysical Institute are international partners on the mission team. For a complete list of mission participants, see http://dawn.jpl.nasa.gov/mission.

For more information about the Dawn mission, visit http://dawn.jpl.nasa.gov.

Image Credit:
NASA/JPL-Caltech/UCLA/MPS/DLR/IDA

Image Addition Date:
2017-04-19