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TOPIC: Mars Reconnaissance orbiter
Blobrana


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Thousands of New Images Show Mars in High Resolution
Thousands of newly released images from more than 1,500 telescopic observations by NASA's Mars Reconnaissance Orbiter show a wide range of gullies, dunes, craters, geological layering and other features on the Red Planet.
The High Resolution Imaging Science Experiment (HiRISE) camera on the orbiter recorded these images from the month of April through early August of this year. The camera team at the University of Arizona, Tucson, releases several featured images each week and periodically releases much larger sets of new images, such as the batch posted today.

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New images for 2 September 2009

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Fan in Southern Highlands Crater
Fan in Southern Highlands Crater (ESP_014159_1670)
Although they may once have been common, fan-shaped mounds like are now rare.
Gullies at the Edge of Hale Crater
Gullies at the Edge of Hale Crater (ESP_014153_1430)
Planetary scientists are using the HiRISE camera to examine gullies for ongoing change and investigate what that might mean for the occurrence of liquid water on the surface of Mars.
Aonia Terra Periglacial Sample
Aonia Terra Periglacial Sample (ESP_013958_1170)
Throughout this entire image in Aonia Terra, it is possible to make out regular polygonally shaped patterns.
Close-Up of a Hale Ray
Close-Up of a Hale Ray (ESP_013916_1485)
Unlike the rays, the pattern in this HiRISE image has relief, so it appears to be areas of bedrock that have been grooved or scoured in a uniform direction.		Rough Terrain
Rough Terrain (ESP_013810_1485)
The rough terrain here is therefore likely to be a mix of impact material and secondary craters from nearby impacts.		Colliding Sand Dunes in Aonia Terra
Colliding Sand Dunes in Aonia Terra (ESP_013785_1300)
The outlying dunes in this image appear as simple arc-shaped barchans formed by southerly winds.
Coordinated MER Spirit and MRO HiRISE Imaging Campaign
Coordinated MER Spirit and MRO HiRISE Imaging Campaign (ESP_013499_1650)
Surprisingly few dust plumes and dust devil tracks have been observed by HiRISE in Gusev Crater, in comparison to the number of dust devils seen by Spirit rover.


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Mars Orbiter Puts Itself in Safe Mode Again
NASA's Mars Reconnaissance Orbiter put itself into a safe mode Wednesday morning, Aug. 26, for the fourth time this year, while maintaining spacecraft health and communications. While in safe mode, the spacecraft has limited activities pending further instructions from ground controllers.

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New images for 19 August 2009

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Scarp-Fed Dark Dunes
Scarp-Fed Dark Dunes (PSP_010344_2655)
Erosion of the dark sandy layers releases sandy material which collects into dunes.		Fissure-Vent along Cerberus Fossae
Well-Exposed Scarp along Nili Fossae
Cone in Chasma Boreale
Cone in Chasma Boreale (PSP_006980_2610)		Series of Possible Pingos in Polygonal Terrain
Series of Possible Pingos in Polygonal Terrain (PSP_006962_2215)		Dust Devil Etch-A-Sketch
Dust Devil Etch-A-Sketch (ESP_013751_1115)
This image was taken in the late southern summer and shows that the dust devil direction of movement changes with seasonal winds.


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New images for 12 August 2009

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Gullies Incised on Crater Wall
Eroded Craters and Sharp Ridges
Gratteri Crater: Flow Ejecta Plus Rocks
Gratteri Crater: Flow Ejecta Plus Rocks (PSP_001367_1620)
Interesting Crater in Meridiani Planum
Interesting Crater in Meridiani Planum (PSP_001348_1770)
What processes might have created the appearance of this crater-within-a-crater?		An Oblique View of Victoria Crater
An Oblique View of Victoria Crater (ESP_013954_1780)
With MRO pointed to the sides, we get a different view of Victoria Crater as if looking out an airplane window.		Dust Devils of Mars!
Dust Devils of Mars! (ESP_013545_1110)
As a dust devil moves across the surface of Mars, it can pick up and disturb loose dust leaving behind a darker track.


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NASA's Mars Reconnaissance Orbiter is in safe mode, a precautionary standby status, and in communications with Earth after unexpectedly switching to its backup computer on Thurs. Aug. 6.
Engineers are working to determine the cause of the spontaneous swap from the orbiter's "A" side computer and subsystems to the redundant "B" side. They have successfully increased the communication rate from the orbiter, but some engineering data about what was occurring just before the side swap may never be available. The team expects it will be at least several days until normal science operations resume.

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New images for 29 August 2009

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Light-Toned Rock and Scarps
Stratigraphy Exposed in Crater Wall
Multiple Slip Face Dunes
Multiple Slip Face Dunes (PSP_009394_2565)
Blocky Floor Deposit in Melas Chasma
Blocky Floor Deposit in Melas Chasma (PSP_009381_1720)		Small Cavi and Contact Relationships
Small Cavi and Contact Relationships (PSP_009357_2655)		Small Impact Crater in Cerberus Palus
Small Impact Crater in Cerberus Palus (ESP_013368_1885)
The crater itself is surrounded by boulders that were ejected from the surface when the impact happened.


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New images for 29 July 2009

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Light-Toned Rock Exposures in Noctis Labyrinthus
Three-Dimensional Exposure of North Polar Layers
Dune Ribbons in Abalos Mensa
Dune Ribbons in Abalos Mensa (PSP_010369_2625)
Sample of Northern Terrain
Sample of Northern Terrain (PSP_010345_2510)		Sample of Tithonium Chasma
Sample of Tithonium Chasma (PSP_010344_1745)		Dune Field in Noachis Terra
Dune Field in Noachis Terra (ESP_013348_1185)
This dune field is on the floor of a small crater in Noachis Terra located in the southern hemisphere of Mars.


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New images for 15 July 2009

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Crater and Plains Deposit NW of Herschel Crater
Disappearing and Shrinking Dome Dunes
Disappearing and Shrinking Dome Dunes (PSP_007080_2565)		Light-Toned Layers in Noctis Labyrinthus
Light-Toned Layers in Noctis Labyrinthus (PSP_007035_1670)
Jeans Crater Dune Field Seasonal Monitoring
Jeans Crater Dune Field Seasonal Monitoring (PSP_007013_1105)		Fresh Crater on Floor of Pasteur Crater
Fresh Crater on Floor of Pasteur Crater (PSP_007004_2000)		Defrosting in Inca City
Defrosting in Inca City (ESP_011544_0985)
This region is so named because its rectilinear grid of ridges is reminiscent of the ruins of an ancient city.


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The diversity of the landscape of Mars, complete with huge sand dunes, melting ice caps, gullies and craters, has been captured in new pictures from the world's most powerful camera.
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New images for 19 June 2009

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Valleys Carved into Elysium Mons
Valleys Carved into Elysium Mons (ESP_013144_2075)
The last eruption of Elysium Mons could well have been a billion years or more ago.
Sulfate and Clay Strata in Gale Crater
Defrosting Spots Over Polygonal Ground
Defrosting Spots Over Polygonal Ground (ESP_012506_0850)


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