Astronomy Picture of the Day
October 14, 2014

Yardangs near Memnonia Fossae (CTX Frame)
Yardangs near Memnonia Fossae (CTX Frame)

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

In this VIS image, taken by the NASA - Mars Odyssey Orbiter on August, 24th, 2014, and during its 56.315th orbit around the Red Planet, we can see a small portion of a Region located near Memnonia Sulci which has been deeply eroded by the Dominant Winds until they formed long series of Linear Ridges commonly known as "Yardangs". The two prominent directions of the Dominant Winds are - as you can see - clearly recorded by the two directions of the Ridges.

Latitude (centered): 10,4443° South
Longitude (centered): 182,4750° East
Instrument: VIS

This image (which is an Original Mars Odyssey Orbiter b/w and Map-Projected frame published on the NASA - Planetary Photojournal with the ID n. PIA 18743) has been additionally processed, magnified to aid the visibility of the details, contrast enhanced and sharpened, Gamma corrected and then 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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