| Piú votate - Phobos: the "Doomed" Moon |
PSP_007769_9015_RED.jpgPhobos (RAW Frame; credits: NASA)54 visitenessun commentoMareKromium
(4 voti)
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PSP_007769_9010-Stickney-1.jpgStickney Crater (Natural Colors + MULTISPECTRUM; credits: NASA & Lunexit)61 visitenessun commentoMareKromium
(4 voti)
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Phobos_Approach.gifApproaching Phobos121 visitenessun commentoMareKromium
(3 voti)
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Phobos-Limb-Mars_Express-01.jpgPhobos, the "Doomed Moon", from Mars Express (Absolute Natural Colors; credits for the additional process. and color.: Dr Paolo C. Fienga - Lunexit Team)180 visitenessun commentoMareKromium
(3 voti)
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Phobos-MEXP-1-h3909_0000_H.jpgPhobos, the "Doomed Moon", from Mars Express (False Colors; credits: Lunexit)55 visiteCaption ESA:"An image of Phobos by the High-Resolution Stereo Camera on board Mars Express taken on January 22, 2007.
The larger and inner of the two Martian Moons is seen here floating just above the Martian Limb. The image has been enhanced slightly to bring out the detail on the moon".MareKromium
(3 voti)
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PSP_007769_9015_MarsShine.jpgIn the Mars-Shine... (credits: NASA)54 visiteThis is a close-up and enhanced part of image PSP_007769_9015. In the original image, detail in the black, un-illuminated portion is not apparent. However, seen in enhanced detail here, craters are clearly visible.
This faint illumination is from reflected light off of Mars (“Marsshine”). This is directly analogous to “Earthshine,” where reflected sunlight from our planet illuminates the dark side of the Moon.
The ability to see features on Phobos illuminated by Marsshine demonstrates the high sensitivity of the HiRISE camera.MareKromium
(3 voti)
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PSP_007769_9010-Stickney-0.jpgStickney Crater (Natural Colors; credits: NASA)57 visiteThe most prominent feature here is the large impact crater Stickney. With a diameter of 9 Km, it is the largest feature on Phobos. A series of grooves and crater chains is obvious on the other parts of the moon.
Although many appear radial to Stickney, previous studies show that the grooves radiate from a different point on Phobos. Hypotheses for their formation vary.
Some scientists believe the grooves and crater chains are related to the formation of Stickney, whereas others think they may have formed from ejecta from impacts on Mars that later collided with Phobos.
The lineated textures on the walls of Stickney and other large craters are landslides formed from materials falling into the crater interiors in the weak Phobos gravity (less than 1/1000th the gravity on Earth).MareKromium
(3 voti)
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z-Viking_1_-_444A05.jpegPhobos passing over Tharsis135 visiteSemplicemente straordinaria.MareKromium
(2 voti)
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w-PIA17352-MarsMoons-PhobosPassesDeimos-RealTime.jpgPhobos and Deimos101 visitenessun commentoMareKromium
(2 voti)
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z-Phobos-20130301_gusev2_f840.jpgPhobos' shadow over Gusev Crater83 visitenessun commentoMareKromium
(2 voti)
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w-Phobos_Shadow_-_1.jpgPhobos' penumbral shadow83 visitenessun commentoMareKromium
(2 voti)
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