Astronomy Picture of the Day
April 3, 2015

Features of Candor Chasma
Features of Candor Chasma

Credits: NASA/JPL/Arizona State University (ASU) - Credits for the additional process. and color.: Dr Paolo C. Fienga/Lunar Explorer Italia/IPF

In this nice VIS image, taken by the NASA - Mars Odyssey Orbiter on May, 25th, 2003, and during its 6.407th orbit around the Red Planet, we can see a small portion of Candor Chasma.


Candor Chasma is one of the largest Canyons forming the Great Valles Marineris Canyon System. This feature is geographically divided into two halves: East and West Candor Chasmas, respectively. It is still unclear how the Canyon originally formed, but one theory is that it was expanded and deepened by Tectonic Processes - similar to the ones that create a so-called "Graben" -, while another theory suggests that it was formed by Subsurface Water Erosion.


Just out of curiosity, the upper part of the frame shows an unusually-looking color (---> light gray) because of the presence of a relatively thick Haze (---> made of Water-Ice Particles, Volcanic Ashes and Dust Particles, which are all) suspended in the lower Strata of the Martian Atmosphere.


Latitude (centered): 7,24526° South
Longitude (centered): 292,30300° East
Instrument: VIS


This image (which is an Original Mars Odyssey Orbiter falsely colored and Map-Projected frame published on the NASA - Planetary Photojournal with the ID n. PIA 19265) has been additionally processed, magnified to aid the visibility of the details, contrast enhanced and sharpened, Gamma corrected and then re-colorized in Absolute Natural Colors (such as the colors that a normal human eye would actually perceive if someone were onboard the NASA - Mars Odyssey Orbiter and then looked down, towards the Surface of Mars), by using an original technique created - and, in time, dramatically improved - by the Lunar Explorer Italia Team.



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