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Addition DateSort Ascending Target Mission Instrument Size
Add Image to Favorite List 2014-12-18 Mars Mars Reconnaissance Orbiter (MRO)
HiRISE
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This image from NASA's Mars Reconnaissance Orbiter is of an approximately 5 kilometer (approx. 3.1 mile) diameter crater that is one of the rare examples of a fresh 'lunar-like' crater on Mars.
PIA19124:
A Fresh, Lunar-Like Crater on Mars
Full Resolution:     TIFF (14.75 MB)     JPEG (855.5 kB)
Add Image to Favorite List 2014-12-18 Mars Mars Reconnaissance Orbiter (MRO)
HiRISE
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Elorza Crater is a complex crater located north of Coprates Chasma. This image from NASA's Mars Reconnaissance Orbiter centers on the southwestern portion of the central uplift, characterized by numerous bedrock exposures and coherent impact melt flows.
PIA19123:
Possible Opaline Silica in the Central Uplift of Elorza Crater
Full Resolution:     TIFF (15.56 MB)     JPEG (562.2 kB)
Add Image to Favorite List 2014-12-18 Mars Mars Reconnaissance Orbiter (MRO)
HiRISE
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This image from NASA's Mars Reconnaissance Orbiter shows frosted gullies on a south-facing slope within a crater. At this time of year only south-facing slopes retain the frost, while the north-facing slopes have melted.
PIA19122:
Frosty Slopes in Late Spring
Full Resolution:     TIFF (15.56 MB)     JPEG (949.1 kB)
Add Image to Favorite List 2014-12-18 Mars Mars Reconnaissance Orbiter (MRO)
HiRISE
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This image from NASA's Mars Reconnaissance Orbiter, approximately 1.5 x 3 kilometers, shows a sample of eroded Martian terrain in Arabia Terra.
PIA19121:
Eroding Terrain in Arabia Terra
Full Resolution:     TIFF (15.56 MB)     JPEG (1.069 MB)
Add Image to Favorite List 2014-12-18 Mars Mars Reconnaissance Orbiter (MRO)
HiRISE
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Polar layered deposits slopes are quite extensive and partially surround the South polar residual cap as seen in this image from NASA's Mars Reconnaissance Orbiter.
PIA19120:
Polar Layered Deposit Slopes
Full Resolution:     TIFF (15.56 MB)     JPEG (840.3 kB)
Add Image to Favorite List 2014-12-12 Mars Mars Reconnaissance Orbiter (MRO)
HiRISE
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Details of hilly terrain within a large Martian canyon are shown on a geological map based on observations from NASA's Mars Reconnaissance Orbiter and produced by the U.S. Geological Survey.
PIA19084:
Geological Mapping of Hills in Martian Canyon
Full Resolution:     TIFF (6.135 MB)     JPEG (332.6 kB)
Add Image to Favorite List 2014-12-12 Mars Mars Reconnaissance Orbiter (MRO)
HiRISE
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This frame from an animation simulates a flyover of a portion of a Martian canyon detailed in a geological map produced by the U.S. Geological Survey and based on observations by the HiRISE camera on NASA's Mars Reconnaissance Orbiter.
PIA19085:
Simulated Flyover of Mars Canyon Map (Animation) Animation Icon
Full Resolution:     TIFF (5.233 MB)     JPEG (208.9 kB)
Add Image to Favorite List 2014-12-10 Mars Mars Reconnaissance Orbiter (MRO)
HiRISE
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This closeup from NASA's Mars Reconnaissance Orbiter covers a region in the Eridania Basin that shows interesting inverted ridges.
PIA19119:
Inverted Ridges in the Eridania Basin
Full Resolution:     TIFF (15.56 MB)     JPEG (923.3 kB)
Add Image to Favorite List 2014-12-10 Mars Mars Reconnaissance Orbiter (MRO)
HiRISE
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Juventae Chasma is a giant box canyon, yet a relatively small segment of the enormous Valles Marineris system, seen here by NASA's Mars Reconnaissance Orbiter.
PIA19118:
Recurring Slope Lineae in Juventae Chasma
Full Resolution:     TIFF (15.56 MB)     JPEG (1.026 MB)
Add Image to Favorite List 2014-12-10 Mars Mars Reconnaissance Orbiter (MRO)
HiRISE
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The frosted gullies in this observation from NASA's Mars Reconnaissance Orbiter are located along an irregularly shaped pit which lies within an impact crater in Sisyphi Planum ocated northwards of the Southern polar layered deposits.
PIA19117:
Frosted Gullies in a Central Pit
Full Resolution:     TIFF (15.56 MB)     JPEG (922.7 kB)
Add Image to Favorite List 2014-12-10 Mars Mars Reconnaissance Orbiter (MRO)
HiRISE
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This image from NASA's Mars Reconnaissance Orbiter shows Morava Valles, a small outflow channel in the Margaritifer Sinus region of Mars.
PIA19116:
Seeing Beneath the Surface in Morava Valles
Full Resolution:     TIFF (15.56 MB)     JPEG (986.2 kB)
Add Image to Favorite List 2014-12-08 Mars Mars Reconnaissance Orbiter (MRO)
Mars Science Laboratory (MSL)
HiRISE
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This map shows the route driven by NASA's Curiosity Mars rover from the location where it landed in August 2012 to the 'Pahrump Hills' outcrop at the base of Mount Sharp.
PIA19067:
Curiosity Mars Rover's Route from Landing to Base of Mount Sharp
Full Resolution:     TIFF (25.26 MB)     JPEG (1.381 MB)
Add Image to Favorite List 2014-12-03 Mars Mars Reconnaissance Orbiter (MRO)
HiRISE
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This image from NASA's Mars Reconnaissance Orbiter shows exposures of deposits along the plateau just to the south of Coprates Chasma.
PIA18933:
Clays along the Coprates Chasma Plateau
Full Resolution:     TIFF (15.56 MB)     JPEG (1.023 MB)
Add Image to Favorite List 2014-12-03 Mars Mars Reconnaissance Orbiter (MRO)
HiRISE
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The Athabasca region contains some of the youngest lava flows on Mars. This looks like a circular island surrounded by a 'sea' of smooth-looking lava flows. This image was observed by NASA's Mars Reconnaissance Orbiter.
PIA18932:
An Enigmatic Feature in Athabasca Lava Flows
Full Resolution:     TIFF (5.191 MB)     JPEG (552.5 kB)
Add Image to Favorite List 2014-12-03 Mars Mars Reconnaissance Orbiter (MRO)
HiRISE
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Arabia Terra is one of the more dusty regions on Mars, where ever-falling red dust covers the surface allowing only minor variations in color and tone as seen by NASA's Mars Reconnaissance Orbiter.
PIA18931:
Dunes and Wind Streaks in Arabia Terra
Full Resolution:     TIFF (15.56 MB)     JPEG (683.5 kB)
Add Image to Favorite List 2014-12-03 Mars Mars Reconnaissance Orbiter (MRO)
HiRISE
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Transverse aeolian ridges (TARs) are commonly found throughout the Martian tropics, including rocky regions such as Syrtis Major that are largely devoid of dust as seen by NASA's Mars Reconnaissance Orbiter.
PIA18930:
Braided TARs in Syrtis Major
Full Resolution:     TIFF (15.56 MB)     JPEG (831.4 kB)
Add Image to Favorite List 2014-11-13 Mars Mars Reconnaissance Orbiter (MRO)
HiRISE
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A significant event has occurred in Inca City. The layer of seasonal ice has started to develop long cracks as evidenced by NASA's Mars Reconnaissance Orbiter.
PIA18896:
Spring in Inca City V
Full Resolution:     TIFF (15.56 MB)     JPEG (452.8 kB)
Add Image to Favorite List 2014-11-13 Mars Mars Reconnaissance Orbiter (MRO)
HiRISE
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At certain times in spring, fans take on a gray or blue appearance. This is the time in Inca City when this phenomenon happens, as seen in this image acquired by NASA's Mars Reconnaissance Orbiter.
PIA18895:
Spring in Inca City IV
Full Resolution:     TIFF (15.56 MB)     JPEG (667.2 kB)
Add Image to Favorite List 2014-11-13 Mars Mars Reconnaissance Orbiter (MRO)
HiRISE
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This image, acquired by NASA's Mars Reconnaissance Orbiter, shows there are a few more fans on the ridge as spring activity progresses in Inca City.
PIA18894:
Spring in Inca City III
Full Resolution:     TIFF (15.56 MB)     JPEG (730.6 kB)
Add Image to Favorite List 2014-11-13 Mars Mars Reconnaissance Orbiter (MRO)
HiRISE
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The season is officially spring on Mars in Inca City. This image was acquired by NASA's Mars Reconnaissance Orbiter. Large blotches of dust cover the araneiforms.
PIA18893:
Spring in Inca City II
Full Resolution:     TIFF (15.56 MB)     JPEG (680.1 kB)
Add Image to Favorite List 2014-11-13 Mars Mars Reconnaissance Orbiter (MRO)
HiRISE
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This was the first image to be acquired by NASA's Mars Reconnaissance Orbiter after the sun rose on Inca City, marking the end to polar night. A few fans are visible emerging from the araneiforms.
PIA18892:
Spring in Inca City I
Full Resolution:     TIFF (15.56 MB)     JPEG (748.4 kB)
Add Image to Favorite List 2014-11-07 Mars Mars Reconnaissance Orbiter (MRO)
HiRISE
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This frame from an animated artist's rendering begins with NASA's Mars Reconnaissance Orbiter spacecraft above Mars. The movie then transitions to a sequence of HiRISE images of the comet taken as it flew past Mars.
PIA19045:
Mars Orbiter Observes Comet Siding Spring (Animation) Animation Icon
Full Resolution:     TIFF (2.734 MB)     JPEG (36.37 kB)
Add Image to Favorite List 2014-11-07 Mars Mars Reconnaissance Orbiter (MRO)
HiRISE
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This frame from a movie sequence of images from NASA's Mars Reconnaissance Orbiter (MRO) shows comet C/2013 A1 Siding Spring before and after its close pass by Mars in October 2014. False color enhances subtle variations in brightness in the comet's coma.
PIA19044:
Mars-Flyby Comet in False Color Animation Icon
Full Resolution:     TIFF (1.013 MB)     JPEG (77.35 kB)
Add Image to Favorite List 2014-11-07 Mars Mars Reconnaissance Orbiter (MRO)
CRISM
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The Compact Reconnaissance Imaging Spectrometer for Mars (CRISM) aboard NASA's Mars Reconnaissance Orbiter obtained this spectrum for comet C/2013 A1 Siding Spring during the comet's close approach to Mars.
PIA18865:
Mars-Orbiting Spectrometer Shows Dusty Comet's Spectrum
Full Resolution:     TIFF (4.475 MB)     JPEG (94.77 kB)
Add Image to Favorite List 2014-11-07 Mars Mars Reconnaissance Orbiter (MRO)
HiRISE
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Five images of comet Siding Spring taken within a 35-minute period as it passed near Mars on Oct. 19, 2014, provide information about the size of the comet's nucleus. The images were acquired by the HiRISE camera on NASA's Mars Reconnaissance Orbiter.
PIA18863:
Mars Orbiter Sizes Up Passing Comet
Full Resolution:     TIFF (1.911 MB)     JPEG (66.52 kB)
Add Image to Favorite List 2014-11-07 Mars Mars Reconnaissance Orbiter (MRO)
HiRISE
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This graph shows changes in apparent brightness of comet C/2013 A1 Siding Spring as it approached and receded from Mars, as seen by the HiRISE camera on NASA's Mars Reconnaissance Orbiter. The pattern suggests the comet rotates once every eight hours.
PIA18862:
Brightness Rhythm of Mars Flyby Comet Is Clue to Rotation Rate
Full Resolution:     TIFF (759 kB)     JPEG (58.15 kB)
Add Image to Favorite List 2014-11-07 Mars Mars Reconnaissance Orbiter (MRO)
Shallow Subsurface Radar (SHARAD)
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A comparison of two radargrams from the SHARAD instrument on NASA's Mars Reconnaissance Orbiter shows effects on the Martian ionosphere from the close passage of a comet.
PIA18861:
Radar Indication of Effect of Comet Flyby on Martian Ionosphere
Full Resolution:     TIFF (4.714 MB)     JPEG (192.9 kB)
Add Image to Favorite List 2014-10-29 Mars Mars Reconnaissance Orbiter (MRO)
HiRISE
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NASA's Mars Reconnaissance Orbiter's HiRISE, with its high resolution and eight years in orbit about Mars, has shown that many dunes and ripples on the planet are active.
PIA18890:
Hardened Dunes in Arcadia Planitia
Full Resolution:     TIFF (15.56 MB)     JPEG (968.1 kB)
Add Image to Favorite List 2014-10-29 Mars Mars Reconnaissance Orbiter (MRO)
HiRISE
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This image captured by NASA's Mars Reconnaissance Orbiter shows a small channel cutting into young volcanic lavas in a region where massive catastrophic flooding took place in the relatively recent past in the Athabasca Valles region.
PIA18889:
Sand Sources Near Athabasca Valles
Full Resolution:     TIFF (15.56 MB)     JPEG (844.8 kB)
Add Image to Favorite List 2014-10-29 Mars Mars Reconnaissance Orbiter (MRO)
HiRISE
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NASA's Mars Reconnaissance Orbiter acquired this image to aid in the search for the missing lander, Mars 2. If the debris field is found, it could serve as a future landing location to study the effects of crash landing on the Martian surface.
PIA18888:
Search for the Mars 2 Debris Field
Full Resolution:     TIFF (15.56 MB)     JPEG (1.2 MB)
Add Image to Favorite List 2014-10-29 Mars Mars Reconnaissance Orbiter (MRO)
HiRISE
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This image NASA's Mars Reconnaissance Orbiter shows an impact crater that was cut by lava in the Elysium Planitia region of Mars. It looks relatively flat, with a shallow floor, rough surface texture, and possible cooling cracks.
PIA18887:
Which Way is Up?
Full Resolution:     TIFF (5.191 MB)     JPEG (506.4 kB)
Add Image to Favorite List 2014-10-24 Mars Mars Reconnaissance Orbiter (MRO)
CRISM
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These two infrared images of comet C/2013 A1 Siding Spring were taken by the Compact Reconnaissance Imaging Spectrometer for Mars (CRISM) aboard NASA's Mars Reconnaissance Orbiter on Oct. 19, 2014.
PIA15291:
Images From Mars-Orbiting Spectrometer Show Comet's Coma
Full Resolution:     TIFF (1.516 MB)     JPEG (38.03 kB)
Add Image to Favorite List 2014-10-20 Mars Mars Reconnaissance Orbiter (MRO)
HiRISE
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These images were taken of comet C/2013 A1 Siding Spring by NASA's Mars Reconnaissance Orbiter on Oct. 19, 2014, during the comet's close flyby of Mars and the spacecraft.
PIA18618:
First Resolved Image of a Long-Period Comet's Nucleus
Full Resolution:     TIFF (567.5 kB)     JPEG (26.9 kB)
Add Image to Favorite List 2014-10-15 Mars Mars Reconnaissance Orbiter (MRO)
HiRISE
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Most surface ice on Mars is temporary. The polar layered deposits are thick stacks of permanent water ice at each pole, and the South Polar residual cap may be a permanent (although dynamic) layer of carbon dioxide ice as seen by NASA's Mars Reconnaissanc
PIA18832:
Perennial Frost in a Crater on the Northern Plains
Full Resolution:     TIFF (15.56 MB)     JPEG (895.2 kB)
Add Image to Favorite List 2014-10-15 Mars Mars Reconnaissance Orbiter (MRO)
HiRISE
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In the northern section of this from image NASA's Mars Reconnaissance Orbiter, we see flat terrain that is probably an ancient lava field. These dust avalanches are common in dust-covered regions on Mars.
PIA18831:
A Collection of Landforms in Eastern Elysium Planitia
Full Resolution:     TIFF (15.56 MB)     JPEG (595.3 kB)
Add Image to Favorite List 2014-10-15 Mars Mars Reconnaissance Orbiter (MRO)
HiRISE
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Melas Chasma is the widest segment of the Valles Marineris canyon, and is an area where NASA's Mars Reconnaissance Orbiter has detected the presence of sulfates.
PIA18830:
Mounds of Layered Material on the West Edge of Melas Chasma
Full Resolution:     TIFF (5.191 MB)     JPEG (662.3 kB)
Add Image to Favorite List 2014-10-15 Mars Mars Reconnaissance Orbiter (MRO)
HiRISE
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The objective of this observation from NASA's Mars Reconnaissance Orbiter is to examine a light-toned deposit in a region of what is called 'chaotic terrain' at the base of the Valles Marineris canyon system.
PIA18829:
A Light Toned Deposit in Arsinoes Chaos
Full Resolution:     TIFF (15.56 MB)     JPEG (693 kB)
Add Image to Favorite List 2014-10-01 Mars Mars Reconnaissance Orbiter (MRO)
HiRISE
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This observation from NASA's Mars Reconnaissance Orbiter shows both dome and barchan dunes in a small sand dune field on the floor of Newton Crater, an approximately 300 kilometer (130 mile) wide crater in the Southern hemisphere of Mars.
PIA18820:
Dome and Barchan Dunes in Newton Crater
Full Resolution:     TIFF (15.56 MB)     JPEG (1.351 MB)
Add Image to Favorite List 2014-10-01 Mars Mars Reconnaissance Orbiter (MRO)
HiRISE
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This observation from NASA's Mars Reconnaissance Orbiter shows bright and dark slope streaks in craters in the Arabia Terra region.
PIA18819:
Bright Slope Streaks in Arabia Terra
Full Resolution:     TIFF (15.56 MB)     JPEG (556.2 kB)
Add Image to Favorite List 2014-10-01 Mars Mars Reconnaissance Orbiter (MRO)
HiRISE
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Nili Patera is a region on Mars in which dunes and ripples are moving rapidly. HiRISE continues to monitor this area every couple of months to see changes over seasonal and annual time scales as seen by NASA's Mars Reconnaissance Orbiter.
PIA18818:
Continual Dune and Ripple Migration in Nili Patera
Full Resolution:     TIFF (15.56 MB)     JPEG (807.2 kB)
Add Image to Favorite List 2014-10-01 Mars Mars Reconnaissance Orbiter (MRO)
HiRISE
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Oxia Planum is broad clay-bearing surface between Mawrth and Ares Vallis that has been proposed as a future landing site on Mars. This image is from NASA's Mars Reconnaissance Orbiter.
PIA18817:
Possible Future Mars Landing Site in Oxia Planum
Full Resolution:     TIFF (15.56 MB)     JPEG (705.9 kB)
Add Image to Favorite List 2014-09-25 Mars Mars Reconnaissance Orbiter (MRO)
Mars Science Laboratory (MSL)
HiRISE
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This map shows the route driven by NASA's Curiosity Mars rover from the 'Bradbury Landing' location where it landed in August 2012 to the 'Pahrump Hills' outcrop where it drilled into the lowest part of Mount Sharp.
PIA18607:
Curiosity Mars Rover's Route from Landing to 'Pahrump Hills'
Full Resolution:     TIFF (25.26 MB)     JPEG (1.571 MB)
Add Image to Favorite List 2014-09-11 Mars Mars Reconnaissance Orbiter (MRO)
Mars Science Laboratory (MSL)
HiRISE
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This image, taken by NASA's Mars Reconnaissance Orbiter, shows the transition between the 'Murray Formation,' in which layers are poorly expressed and difficult to trace from orbit, and the hematite ridge, which is made up of continuous layers.
PIA18785:
Geological Transition
Full Resolution:     TIFF (21.61 MB)     JPEG (2.032 MB)
Add Image to Favorite List 2014-09-11 Mars Mars Reconnaissance Orbiter (MRO)
Mars Science Laboratory (MSL)
HiRISE
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This image, taken NASA's Mars Reconnaissance Orbiter, shows distinct bands of alternating tone and brightness within the 'Murray Formation' on Mars. Outcrops like this are common throughout the formation.
PIA18784:
Bands on the 'Murray Formation'
Full Resolution:     TIFF (8.918 MB)     JPEG (563 kB)
Add Image to Favorite List 2014-09-11 Mars Mars Reconnaissance Orbiter (MRO)
Mars Science Laboratory (MSL)
HiRISE
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This image, taken by NASA's Mars Reconnaissance Orbiter, shows a mesa within the 'Murray Buttes' area on Mars showing a complex fracture pattern (black arrow) protruding from the eroding rock.
PIA18783:
'Murray Buttes' Mesa
Full Resolution:     TIFF (8.918 MB)     JPEG (471.3 kB)
Add Image to Favorite List 2014-09-11 Mars Mars Reconnaissance Orbiter (MRO)
Mars Science Laboratory (MSL)
HiRISE
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This is a map of lower Mount Sharp on Mars, showing the major geologic units identified from orbit. The rocks of the 'Murray Formation,' mapped in green, likely represent the oldest layers of Mount Sharp that NASA's Curiosity rover will explore.
PIA18781:
Map of Lower Mount Sharp
Full Resolution:     TIFF (37.68 MB)     JPEG (1.64 MB)
Add Image to Favorite List 2014-09-11 Mars Mars Reconnaissance Orbiter (MRO)
Mars Science Laboratory (MSL)
HiRISE
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This mosaic, taken by NASA's Mars Reconnaissance Orbiter, shows the planned route (in yellow) of NASA's Curiosity rover from 'Pahrump Hills' at the base of Mount Sharp, through the 'Murray Formation.'
PIA18780:
Curiosity Rover Planned Route
Full Resolution:     TIFF (57.42 MB)     JPEG (3.739 MB)
Add Image to Favorite List 2014-09-11 Mars Mars Reconnaissance Orbiter (MRO)
Mars Science Laboratory (MSL)
HiRISE
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The route of NASA's Mars Curiosity rover up the slopes of Mount Sharp on Mars is indicated in yellow in this image. The rover's current position is marked with a star. This new route provides excellent access to many features in the 'Murray Formation.'
PIA18475:
Curiosity's Next Steps
Full Resolution:     TIFF (25.25 MB)     JPEG (1.735 MB)
Add Image to Favorite List 2014-09-11 Mars Mars Reconnaissance Orbiter (MRO)
Mars Science Laboratory (MSL)
HiRISE
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This topography map shows a portion of the Gale Crater region on Mars, where NASA's Mars Curiosity rover landed on August 6, 2014. The rover (marked with a star) is currently headed toward 'Pahrump Hills.'
PIA18474:
Slopes of Mount Sharp
Full Resolution:     TIFF (25.26 MB)     JPEG (1.023 MB)
Add Image to Favorite List 2014-09-10 Mars Mars Reconnaissance Orbiter (MRO)
HiRISE
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Lava flows south of Arsia Mons in Daedalia Planum transition from younger flows with elongated, sinuous morphologies to the northeast, to older, broader lobes and sheet flows to the southwest. This image is from NASA's Mars Reconnaissance Orbiter.
PIA18807:
Overlapping Lobate Lava Flows in Daedalia Planum
Full Resolution:     TIFF (5.191 MB)     JPEG (515.1 kB)
Add Image to Favorite List 2014-09-10 Mars Mars Reconnaissance Orbiter (MRO)
HiRISE
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The tropics of Mars are commonly littered with small bright ripples that were somehow shaped by the wind. NASA's Mars Reconnaissance Orbiter might provide a valuable clue to the formation of transverse aeolian ridges (TARs) elsewhere on Mars.
PIA18806:
Banded TARs in Iapygia
Full Resolution:     TIFF (15.56 MB)     JPEG (738.2 kB)
Add Image to Favorite List 2014-09-10 Mars Mars Reconnaissance Orbiter (MRO)
HiRISE
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This image from NASA's Mars Reconnaissance Orbiter shows Vinogradov, an old, 224-kilometer diameter, heavily degraded impact crater in southern Margaritifer Terra.
PIA18805:
Mysterious Light-Toned Deposit in Vinogradov Crater
Full Resolution:     TIFF (15.56 MB)     JPEG (1.01 MB)
Add Image to Favorite List 2014-09-10 Mars Mars Reconnaissance Orbiter (MRO)
HiRISE
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Eridania is the name of topographically enclosed basin located in the Southern highlands of Mars that has been suggested to be the site of a large ancient lake or inland sea. This image is from NASA's Mars Reconnaissance Orbiter.
PIA18804:
Chaos in Eridania Basin
Full Resolution:     TIFF (15.56 MB)     JPEG (684.1 kB)
Add Image to Favorite List 2014-08-27 Mars Mars Reconnaissance Orbiter (MRO)
HiRISE
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This recent image from NASA's Mars Reconnaissance Orbiter, acquired to certify a landing site for NASA'a InSight mission, shows a distinctive crater with a very sharp rim and ejecta.
PIA18776:
A New Impact Crater Near NASA's InSight Landing Region
Full Resolution:     TIFF (15.56 MB)     JPEG (1.268 MB)
Add Image to Favorite List 2014-08-27 Mars Mars Reconnaissance Orbiter (MRO)
HiRISE
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This mantle observed by NASA's Mars Reconnaissance Orbiter is thought to be deposited as snow during periods when the angle of the tilt of Mars' rotational axis-called obliquity-is much higher, which last happened around 10 million years ago.
PIA18775:
Mantled Terrain in the Southern Mid-Latitudes
Full Resolution:     TIFF (15.56 MB)     JPEG (874.7 kB)
Add Image to Favorite List 2014-08-27 Mars Mars Reconnaissance Orbiter (MRO)
HiRISE
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This crater captured by NASA's Mars Reconnaissance Orbiter has a strange appearance, as if the crater has feet with toes sticking out of two sides, likely caused by a highly oblique impact event.
PIA18774:
Weird Crater
Full Resolution:     TIFF (15.56 MB)     JPEG (933 kB)
Add Image to Favorite List 2014-08-27 Mars Mars Reconnaissance Orbiter (MRO)
HiRISE
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This image captured by NASA's Mars Reconnaissance Orbiter is of an area called Aram Dorsum (also known by its old name, Oxia Palus) that has been suggested for the 2018/2020 ExoMars Rover because it contains an ancient, exhumed alluvial system.
PIA18773:
A Possible Landing Site in Aram Dorsum for the ExoMars Rover
Full Resolution:     TIFF (15.56 MB)     JPEG (608.6 kB)
Add Image to Favorite List 2014-08-13 Mars Mars Reconnaissance Orbiter (MRO)
HiRISE
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The track left by an oblong boulder as it tumbled down a slope on Mars runs from upper left to right center of this image taken by NASA's Mars Reconnaissance Orbiter.
PIA18594:
An Irregular, Upright Boulder on Mars
Full Resolution:     TIFF (3.438 MB)     JPEG (414 kB)
Add Image to Favorite List 2014-08-13 Mars Mars Reconnaissance Orbiter (MRO)
HiRISE
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Hellas Crater in the ancient highlands contains some of the clearest evidence on Mars for glacial processes. This image from NASA's Mars Reconnaissance Orbiter shows a number of features consistent with glaciation.
PIA18647:
Glaciation at the Eastern Hellas Margin
Full Resolution:     TIFF (15.56 MB)     JPEG (1.016 MB)
Add Image to Favorite List 2014-08-13 Mars Mars Reconnaissance Orbiter (MRO)
HiRISE
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The north end of this long image from NASA's Mars Reconnaissance Orbiter shows a lava surface in southern Elysium Planitia. Small cones are common on the extensive young flood lavas in this region.
PIA18646:
The Side of Chasma Boreale
Full Resolution:     TIFF (15.56 MB)     JPEG (1.215 MB)
Add Image to Favorite List 2014-08-13 Mars Mars Reconnaissance Orbiter (MRO)
HiRISE
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The north end of this long image from NASA's Mars Reconnaissance Orbiter shows a lava surface in southern Elysium Planitia. Small cones are common on the extensive young flood lavas in this region.
PIA18645:
Strange Cones and Flows
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Add Image to Favorite List 2014-08-01 Mars Mars Reconnaissance Orbiter (MRO)
Mars Science Laboratory (MSL)
HiRISE
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The main map shows landforms near NASA's Curiosity Mars rover as the rover's second anniversary of landing on Mars nears. The gold traverse line ends at Curiosity's position as of July 31, 2014 (Sol 705).
PIA18408:
Sandy Martian Valleys in Curiosity's Near Future
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Add Image to Favorite List 2014-07-30 Mars Mars Reconnaissance Orbiter (MRO)
HiRISE
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Schiaparelli Crater is a 460 kilometer (286 mile) wide multi-ring structure. However, it is a very shallow crater, apparently filled by younger materials such as lava and/or fluvial and aeolian sediments as seen by NASA's Mars Reconnaissance Orbiter.
PIA18635:
Layers and Sand on the Floor of Schiaparelli Crater
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Add Image to Favorite List 2014-07-30 Mars Mars Reconnaissance Orbiter (MRO)
HiRISE
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Monitoring by NASA's Mars Reconnaissance Orbiter HiRISE has shown that gully formation on Mars occurs in winter and early spring in times and places with frost on the ground.
PIA18634:
Frosty Gullies
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Add Image to Favorite List 2014-07-30 Mars Mars Reconnaissance Orbiter (MRO)
HiRISE
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This image from NASA's Mars Reconnaissance Orbiter shows what is termed a pedestal crater, so-called because the level of the surface adjacent to the crater is elevated relative to the surface of the surrounding terrain.
PIA18633:
Preserving Ice from a Vanished Terrain
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Add Image to Favorite List 2014-07-30 Mars Mars Reconnaissance Orbiter (MRO)
HiRISE
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Many of the depressions in Noctis Labyrinthus contain water-bearing minerals, suggesting that water was available and persistent in this region during the Late Hesperian to Amazonian epochs on Mars, as seen by NASA's Mars Reconnaissance Orbiter.
PIA18632:
Water-Bearing Rocks in Noctis Labyrinthus
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Add Image to Favorite List 2014-07-28 Mars Mars Exploration Rover (MER)
Mars Reconnaissance Orbiter (MRO)
CTX
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NASA's Opportunity rover, working on Mars since January 2004, passed 25 miles of total driving on the July 27, 2014. The gold line on this map shows Opportunity's route from the landing site inside Eagle Crater, in upper left.
PIA18404:
Opportunity's Journey Exceeds 25 Miles
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Add Image to Favorite List 2014-07-16 Mars Mars Reconnaissance Orbiter (MRO)
HiRISE
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This image from NASA's Mars Reconnaissance Orbiter shows some interesting fractured materials on the floor of an impact crater in Arabia Terra.
PIA18625:
Ancient Lake Sediments in a Crater
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Add Image to Favorite List 2014-07-16 Mars Mars Reconnaissance Orbiter (MRO)
HiRISE
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At Mars' North Pole is a dome of icy layers ranging up to 2 kilometers thick, roughly analogous to the Earth's ice caps in Greenland or Antarctica. This image is from NASA's Mars Reconnaissance Orbiter.
PIA18624:
The Icy Surface of the North Polar Cap
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Add Image to Favorite List 2014-07-16 Mars Mars Reconnaissance Orbiter (MRO)
HiRISE
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Eridania Basin, located at the head of Ma'adim Vallis, has mounting geomorphic and spectral evidence that it may have been the site of an ancient inland sea. This image is from NASA's Mars Reconnaissance Orbiter.
PIA18623:
Ridges in Eridania Basin
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Add Image to Favorite List 2014-07-10 Mars Mars Reconnaissance Orbiter (MRO)
HiRISE
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This pair of images covers one of many sites on Mars where researchers use the HiRISE camera on NASA's Mars Reconnaissance Orbiter to study changes in gullies on slopes. Changes are visible in deposits near the lower end of this gully.
PIA18400:
Changes Near Downhill End of a Martian Gully
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Add Image to Favorite List 2014-07-10 Mars Mars Reconnaissance Orbiter (MRO)
HiRISE
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This image from NASA's Mars Reconnaissance Orbiter covers a location that has been imaged several times to look for changes in gullies.
PIA18538:
Activity in Martian Gully
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Add Image to Favorite List 2014-07-08 Mars Mars Reconnaissance Orbiter (MRO)
HiRISE
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NASA's Mars Reconnaissance Orbiter captured this image on 27 June 2014, when Curiosity had just crossed the edge of the 3-sigma landing.
PIA18581:
Curiosity Offside!
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Add Image to Favorite List 2014-07-08 Mars Mars Reconnaissance Orbiter (MRO)
HiRISE
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This June 27, 2014, image from the HiRISE camera on NASA's Mars Reconnaissance Orbiter shows NASA's Curiosity Mars rover on the rover's landing-ellipse boundary, which is superimposed on the image.
PIA18399:
Curiosity Mars Rover Reaching Edge of Its Landing Ellipse
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Add Image to Favorite List 2014-07-02 Mars Mars Reconnaissance Orbiter (MRO)
HiRISE
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An impact crater in Isidis Planitia observed for a fifth time by NASA's Mars Reconnaissance Orbiter.
PIA18622:
An Impact Crater in Isidis Planitia
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Add Image to Favorite List 2014-07-02 Mars Mars Reconnaissance Orbiter (MRO)
HiRISE
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This image NASA's Mars Reconnaissance Orbitershows a prominently stratified transect through the rock of a mountain of material in the middle of Hebes Chasma.
PIA18621:
A Revealing Landslide in Hebes Chasma
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Add Image to Favorite List 2014-07-02 Mars Mars Reconnaissance Orbiter (MRO)
HiRISE
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An impact crater in Isidis Planitia observed for a fifth time by NASA's Mars Reconnaissance Orbiter.
PIA18620:
Feathery Ridges
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Add Image to Favorite List 2014-07-02 Mars Mars Reconnaissance Orbiter (MRO)
HiRISE
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Pavonis Mons is a giant shield volcano similar to (although larger than) those on the Big Island of Hawaii. This image is from NASA's Mars Reconnaissance Orbiter.
PIA18589:
A Giant Cave on a Giant Volcano
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Add Image to Favorite List 2014-06-18 Mars Mars Reconnaissance Orbiter (MRO)
HiRISE
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This image captured by NASA's Mars Reconnaissance Orbiter appears to show some type of mass movement of material down the wall of a mesa in Deuteronilus Mensae.
PIA18588:
Moving Mass Material on a Mesa
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Add Image to Favorite List 2014-06-18 Mars Mars Reconnaissance Orbiter (MRO)
HiRISE
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The North Polar layered deposits (NPLD) are a stack of layers of ice and dust at the North Pole of Mars. The layers are thought to have been deposited over millions of years. This image is from NASA's Mars Reconnaissance Orbiter.
PIA18587:
Waiting for Dust Devils
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Add Image to Favorite List 2014-06-18 Mars Mars Reconnaissance Orbiter (MRO)
HiRISE
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The North Polar layered deposits (NPLD) are a stack of layers of ice and dust at the North Pole of Mars. The layers are thought to have been deposited over millions of years. This image is from NASA's Mars Reconnaissance Orbiter.
PIA18586:
Blockfall on the North Polar Layered Deposits
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Add Image to Favorite List 2014-06-18 Mars Mars Reconnaissance Orbiter (MRO)
HiRISE
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This image NASA's Mars Reconnaissance Orbiter shows dozens of dark-toned dunes in and around several craters within the rugged terrain of Terra Cimmeria.
PIA18585:
Sand Dune Catch and Release
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Add Image to Favorite List 2014-06-04 Mars Mars Reconnaissance Orbiter (MRO)
HiRISE
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On Mars, alluvial fans are sometimes visible in impact crater basins, as material from the steep rims is transported radially inward to the relatively flat floor. This image is from NASA's Mars Reconnaissance Orbiter.
PIA18513:
An Alluvial Fan in a Low-Latitude Crater
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Add Image to Favorite List 2014-06-04 Mars Mars Reconnaissance Orbiter (MRO)
HiRISE
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This image from NASA's Mars Reconnaissance Orbiter shows features commonly found in dusty areas: impacts, slope streaks and bed-forms.
PIA18512:
Touring a Dusty Region
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Add Image to Favorite List 2014-06-04 Mars Mars Reconnaissance Orbiter (MRO)
HiRISE
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This crater, seen NASA's Mars Reconnaissance Orbiter, is located in Meridiani Planum, about 20-kilometers northwest of where NASA's Opportunity rover landed in 2004 and about 42-kilometers northwest of Endeavour Crater's rim.
PIA18511:
A Large Crater in Meridiani Planum
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Add Image to Favorite List 2014-05-22 Mars Mars Reconnaissance Orbiter (MRO)
HiRISE
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This April 6, 2014, image from NASA's Mars Reconnaissance Orbiter shows numerous landslides in the vicinity of where an impact crater was excavated in March 2012.
PIA18385:
Landslides Near Fresh Crater on Mars
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Add Image to Favorite List 2014-05-22 Mars Mars Reconnaissance Orbiter (MRO)
HiRISE
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The largest crater associated with a March 2012 impact on Mars has many smaller craters around it, revealed in this image from the High Resolution Imaging Science Experiment (HiRISE) camera on NASA's Mars Reconnaissance Orbiter.
PIA18384:
Large, Fresh Crater Surrounded by Smaller Craters
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Add Image to Favorite List 2014-05-22 Mars Mars Reconnaissance Orbiter (MRO)
CTX
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These images from the Context Camera on NASA's Mars Reconnaissance Orbiter were taken before and after an apparent impact scar appeared in the area in March 2012. Comparing the images confirms that fresh craters appeared during the interval.
PIA18383:
Before-and-After Views Confirm Fresh Craters
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Add Image to Favorite List 2014-05-22 Mars Mars Reconnaissance Orbiter (MRO)
HiRISE
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A large new crater, seen by NASA's Mars Reconnaissance Orbiter, appear slightly asymmetric in shape, and measures 159 x 143 feet (48.5 x 43.5 meters) in diameter, making it the largest new crater detected on Mars by MRO to date.
PIA18772:
Global Eyes on an Impact Prize
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Add Image to Favorite List 2014-05-22 Mars Mars Reconnaissance Orbiter (MRO)
CTX
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This April 6, 2014, image from NASA's Mars Reconnaissance Orbiter was taken as a follow-up to discovery of a possible 2012 impact scar in images from the orbiter's Mars Color Imager. It reveals two craters within the darkened area (center of rectangle).
PIA18382:
Fresh Mars Crater Confirmed Within Impact Scar
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Add Image to Favorite List 2014-05-22 Mars Mars Reconnaissance Orbiter (MRO)
HiRISE
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The deep chasm that formed on the polar cap edge is identified as an area of strong down-slope winds and has a clear connection to Mars' largest dune field, Olympia Undae as observed by NASA's Mars Reconnaissance Orbiter.
PIA18771:
At the Edge of a Polar Cap
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Add Image to Favorite List 2014-05-22 Mars Mars Reconnaissance Orbiter (MRO)
MARCI
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These two images taken one day apart by the MARCI weather camera on NASA's Mars Reconnaissance Orbiter reveal when an asteroid impact made the scar seen in the right-hand image.
PIA18381:
Best-Ever Pinning Down When a Space Rock Hit Mars
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Add Image to Favorite List 2014-05-22 Mars Mars Reconnaissance Orbiter (MRO)
HiRISE
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This observation from NASA's Mars Reconnaissance Orbiter shows an incredible diversity of ancient lava tubes and impact craters filled with sediment on the flank of Arsia Mons.
PIA18649:
The Busy Flank of Arsia Mons
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Add Image to Favorite List 2014-05-22 Mars Mars Reconnaissance Orbiter (MRO)
MARCI
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This March 20, 2014, image from the MARCI camera on NASA's Mars Reconnaissance Orbiter has a dark spot (at center of rectangle) noticed while the image was being examined for a weather report.
PIA18380:
Impact Scar Detected in Mars Weathercam Image
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Add Image to Favorite List 2014-05-22 Mars Mars Reconnaissance Orbiter (MRO)
HiRISE
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Right past the sharp, but warped rim of this ancient impact crater are deposits of winter frost, which show up as blue in enhanced color as seen by NASA's Mars Reconnaissance Orbiter.
PIA18648:
What Gullies Can Say
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Add Image to Favorite List 2014-05-21 Mars Mars Reconnaissance Orbiter (MRO)
HiRISE
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This image from NASA's Mars Reconnaissance Orbiter shows impact craters.
PIA17482:
New Impact Site
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Add Image to Favorite List 2014-04-30 Mars Mars Reconnaissance Orbiter (MRO)
HiRISE
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Nili Patera is one of the most active dune fields on Mars. Continuously monitored by the HiRise instrument onboard NASA's Mars Reconnaissance Orbiter, a new image is acquired about every six weeks.
PIA18244:
The Active Dunes of Nili Patera
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Add Image to Favorite List 2014-04-30 Mars Mars Reconnaissance Orbiter (MRO)
HiRISE
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Olympia Undae is a large field of sand dunes surrounding Mars' North Polar ice cap. High latitude covers them with water and carbon dioxide frost in the winter so they are illuminated. NASA's Mars Reconnaissance Orbiter views these best in summer.
PIA18243:
Changing Dunes and Ripples in Olympia Undae
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Add Image to Favorite List 2014-04-30 Mars Mars Reconnaissance Orbiter (MRO)
HiRISE
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The objective of this observation by NASA's Mars Reconnaissance Orbiter was to examine the edge of impact ejecta from a crater to the north-west of this area (north is up, west is to the left).
PIA18242:
Sunken and Pitted Ejecta
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Add Image to Favorite List 2014-04-30 Mars Mars Reconnaissance Orbiter (MRO)
HiRISE
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Yardangs are streamlined hills that are carved by wind erosion from bedrock. NASA's Mars Reconnaissance Orbiter viewed these yardangs which can look like the hull of a boat.
PIA18241:
Yardangs Forming Near Gordii Dorsum
Full Resolution:     TIFF (15.56 MB)     JPEG (734.8 kB)
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