Astronomy Picture of the Day
January 27, 2015

Fresh Impact in Elysium Planitia (EMDM)
Fresh Impact in Elysium Planitia (EMDM)

Credits: NASA/JPL-Caltech/University of Arizona - Credits for the additional process. and color.: Dr Paolo C. Fienga/LXTT/IPF

Now, in today's APOD, can you see, in this Extremely Magnified Detail Magnification (or "EMDM", for short) the tiny (but now well visible) white/bluish recflection located on the right (Dx) side (---> Wall/Inner Slopes) of the small Impact Crater that is still illuminated by the Sun?


This circumstance, if and once confirmed by NASA, could be an additional (and even visual, in this case) proof (as a matter of fact, just one of the many) that, right under the Surface (---> to be more correct: the Sub-Surface) of Mars, there are still large quantities of Water Ice which, from time to time, are brought to light by - even modest - Impact Events.


So, do you honestly think that it is just Sunlight illuminating a flat and highly reflective area of the Eastern Slopes of this small Impact Crater, or it "could" actually be Water Ice which has been unearthed? Let us know, by writing at alphacentauri@intercom.it .


Mars Local Time: 15:17 (Early Afternoon)
Coord. (centered): 18,012° North Lat. and 138,662° East Long.
Spacecraft altitude: 282,4 Km (such as about 175,3704 miles)
Original image scale range: 28,3 cm/pixel (with 1 x 1 binningso objects85 cm across are resolved (with 2 x 2 binning)
Map projected scale: 25 cm/pixel
Map projection: EQUIRECTANGULAR
Emission Angle: 5,2°
Phase Angle: 67,7°
Solar Incidence Angle: 63° (meaning that the Sun was about 27° above the Local Horizon at the time the picture was taken)
Solar Longitude: 245,1° (Northern Fall - Southern Spring)
Credits: NASA/JPL/University of Arizona
Additional process. and coloring: Lunar Explorer Italia


This picture (which is a crop obtained from a NASA - Original Mars Reconnaissance Orbiter b/w and NON-Map-Projected CTX frame identified by the serial n. ESP_039148_1980) has been additionally processed, extra-magnified - in order to make the details more visible -, contrast enhanced, Gamma corrected, and then colorized in Absolute Natural Colors (such as the colors that a human eye would actually perceive if someone were onboard the NASA - Mars Reconnaissance 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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