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Inizio > MARS > Mars Reconnaissance Orbiter (MRO)

Ultimi commenti - Mars Reconnaissance Orbiter (MRO)

PSP_005334_2170_RED_abrowse-00~0.jpgCollapse Pits near Alba Patera (MULTISPECTRUM; elab. Lunexit)54 visiteThis observation shows pits in Acheron Catena, a chain of circular depressions located South-East of Alba Patera, the widest and flattest volcano on Mars.
The layers seen around the pit rims are likely lava flows from Alba Patera or the nearby Tharsis Mons.
The pits probably formed by collapse into empty space beneath the surface as opposed to being formed by an impactor from space. Some of the pits have large piles of material in their centers. These piles are evidence of collapse of the walls, which may have occurred after the main collapse event that formed each pit. The second pit from the right has an indistinct north rim; it appears that there were at least two collapse events here.

A couple of the pits have oval shaped craters on their walls.
The craters were almost certainly circular when they formed, but time and gravity have allowed the deformation of their shape by mass wasting.1 commentiMareKromium01/19/09 at 13:25Paolo C. Fienga: Sempre detto con (relativa) Umilt?: un Lavoro accu...

PSP_010047_1745_RED-01.jpgStar-like shaped Hill in Terra Tyrrhena (edm - possible True Colors; credits: Lunar Explorer Italia)56 visite...Pubblichiamo questo extra-detail magnification (edm) girando a Voi la domanda postaci dal nostro Caro Amico "Cano00": questa striscia di puntini (si direbbero dei mini-segmenti scuri) allineati, che cos'è? E' un intrigantissimo rilievo superficiale, oppure è un image-artifact?

Ed in ogni caso: COMPLIMENTI a Cano00 per l'occhio (straordinario) che ha avuto!...8 commentiMareKromium01/05/09 at 15:07Anakin: Si e sono d'accordo

PSP_003234_2210_red.jpgThe "Face" on Mars... (False Colors; credits: NASA/JPL)90 visiteImage PSP_003234_2210 was taken by the High Resolution Imaging Science Experiment (HiRISE) camera onboard the Mars Reconnaissance Orbiter spacecraft on 05-Apr-2007.
The complete image is centered at 40,7° latitude, 350,5° East Longitude. The range to the target site was 299,4 Km (187,1 miles). At this distance the image scale is 29,9 cm/pixel (with 1 x 1 binning) so objects ~90 cm across are resolved.
The image shown here has been map-projected to 25 cm/pixel and north is up.
The image was taken at a local Mars time of 03:28 PM and the scene is illuminated from the West with a solar incidence angle of 73°, thus the Sun was about 17° above the horizon.
At a Solar Longitude of 213,4°, the season on Mars is Northern Autumn. 19 commenti01/05/09 at 15:02Anakin: Un Abbraccioe un BUON ANNO A VOI!

PSP_010063_2135_RED.jpgIsmenius Lacus (possible True Colors; credits: Lunar Explorer Italia)55 visiteMars Local Time: 14:16 (early afternoon)
Coord. (centered): 33,2° North Lat. and 17,4° East Long.
Spacecraft altitude: 296,7 Km (such as about 185,5 miles)
Original image scale range: 29,7 cm/pixel (with 1 x 1 binning) so objects ~59,4 cm across are resolved
Map projected scale: 25 cm/pixel
Map projection: EQUIRECTANGULAR
Emission Angle: 6,9°
Phase Angle: 54,4°
Solar Incidence Angle: 47° (meaning that the Sun is about 43° above the Local Horizon)
Solar Longitude: 129,0° (Northern Summer)
Credits: NASA/JPL/University of Arizona
Additional process. and coloring: Lunar Explorer Italia6 commentiMareKromium01/04/09 at 23:57george_p: Bellissime deduzioni circa la NASA che, in effetti...

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