- Original Caption Released with Image:
-
Three-image Composite
 |
 | | Navigation Camera Image | False Color Image |
These images were acquired by NASA's Mars Exploration Rover Opportunity
using its panoramic camera on sol 644 (Nov. 15, 2005; upper two images)
and its navigation camera on sol 645 (Nov. 16, 2005; lower image). The
view looks towards the east, covering a large wind-blown ripple called
"Scylla" other nearby ripples and patches of brighter rock strewn with
dark cobbles. Panoramic camera bands L4 (601-nanometer wavelength), L5
(535 nanometers), and L6 (482 nanometers) correspond to red, green, and
blue bands in the false-color image shown in the upper left. The
blue-tinted colors associated with the scours and ripple crests are
probably due to the presence of basaltic sands mixed with hematite-rich
spherules. Color patterns on the larger ripple flanks are caused by
different amounts of reddish dust. The larger ripple flanks have an
intricate mixture of erosional scours and secondary ripples extending
downward from the main ripple crests, suggesting that these ripples have
most recently encountered a period of wind erosion and transport of their
outer layers. For comparison, the same panoramic camera image is shown
here, but in this case rendered as an approximately true-color composite.
- Image Credit:
-
NASA/JPL-Caltech/Cornell
|
