danajohnson0

@marscloseup

Viewing Mars one square inch at a time. MER Mars rover Micro Imager raw photos at NASA; also Phoenix, LRO, HiRISE, more,

Photos and Videos by @marscloseup

  • Timeline
  • Gallery

The Moon at 1 meter resolution, this closeup of two formations - a pentagon, and rolling stones leaving trails.

  • 1371 days ago via site
  • 143

Mars gravity pattern globally, seen through the South pole of Mars at a satellite elvation. Anigif- two images.
North hemisphere, then the South hemisphere, showing the gravity field is compensated at opposing North to South latitudes from polar satellite viewpoint. This matches the Earth's gravity field pattern in that particular process.

  • 1371 days ago via site
  • 318

A mirrored doublet of the array from HiRISE image ESP_016032_2600. This shows the probable full count of 12 petals in the full circular shape, seen as a half circle with 6-7 exposed petals in the unaltered original enlarged image.
The counting of the seventh petal only once, due to the alignment of that petal with the diagonal across the circle outline gives a count of 12 total. This is a natural symmetry formation count, and gives me some confidence that the array is either complete but covered in the upper half by a viewable dark layer of material, or that the array is partial, and given to a restriction in the arrangement only allowing half the total count. As one petal is partly on the burial line, and seems fainter but well formed, I have confidence in the regular measure between petals. Other views of this item are found in this Twitpic list, and in my Imageshack.us account in the name ' danajohnson0 ', as below.

  • 2481 days ago via site
  • 77

In a continued display of formations in the image ESP_016032_2600, this is the closest view of the 'leaf' or paisley shape which is repeated across dune crests which are seasonally defrosting during the imaging. 35-38 feet diameter. These well shaped relief structures are found in ordered centrered domination of many of the dark gully formations along dune crests. These also form in other circumpolar longitudes near this latitude range. In areas they dominate the low lying flat terrain where ice is high in percentage of the mix.
x=36960 , y=25060 animated GIF here, MRO/HiRISE , color JP2 image source

  • 2481 days ago via site
  • 77

Located in the lowest elevation shaded side of a north polar Mars dune, at about 80 degrees latitude, this array of petaled and colorful material has never been seen anywhere else to date. The formation is related to the Araneiform or Spider patterns which dominate the dunes and ground level in this area near the defrosting seasonal ice cap. Image ESP_016032_2600, color, and IR grayscale. This location is related to the other enlarged sections displayed on twitpic in sequence, showing dark 'leaf' shapes, dark gullies, dark streaking, and dark fracture fill eruptions. There is some evidence of mounded vent type cones with depressed cores nearly in contact with this unusual detailed petal array crystallinity controlled structure. This is somewhat similar to massive calcite crystalline petaled growths found in smaller size on Earth. This dark shaded face of the dune should establish this as recent or an exposed excavated fairly recent material. At subfreezing and wind protected conditions where dune driven infill should bury this, it is uncovered by an active process, or, formed and caused by a ongoing process of formation activity in the dark, cold, shade. Seasonal defrosting is underway. More at http://marsroverblog.com
credits: source image, NASA/JPL/University of Arizona HiRISE: http://hirise.lpl.arizona.edu/ESP_016032_2600

  • 2482 days ago via site
  • 103

A normal 'not altered' view of the HiRISE image section from ESP_016032_2600, a color JP2 file. Latitude about 80 degrees north, in the polar dunes of Mars. Image taken from about 165-200 miles distance by telescopic camera. The dark upper left inner section of the dark gully spot has a darker 'leaf' shape within. That 'leaf' is about 38 feet in diameter, 32 feet long, with the circular core spot about 10 feet in diameter. These shapes appear along the dune crest and upslope in the dark gully-streaking formations commonly, and s few in the not dark slopes, at varying sizes. Dark 'fans' appear along the slopes and lower ground level materials which appear as two material types or more. The dark spots appear at regular intervals across the bright lower ground surface(far)left, out of view here, and the landscapes appears to be 'infected' as a rash like interval spacing. Araneiform , or Spider formations appear across both dunes and the flatter low ground surface, as radial arrayed 'starburst' and varied geometric patterned dark point sourced emergent diffusions/transformation domains. Elaborate mathematical alignments and interactions can be seen in many to each other and to the ground mass and dune layered masses. Actual 3D shaping, stems, ridged and depressed mounds and pits form at Araneiform active spots. Some conical vents are visible where eruptions occur. Some inactive formations are not dark. Transparent slabs of material flow from some, with the dark fans not adhering to the clear slabs, only the rippled or rougher ground surface. More. at www.marsroverblog.com/forum , ' danajohnson0 ' username sourced topics.

  • 2482 days ago via site
  • 52

HiRISE source color JP2 image file of Mars north polar dunes in active alteration by season. ESP_016032_2600 at HiRISE catalog search index.
Upper right shows a 'leaf' shape or paisley pattern which repeats regularly along the dune crests at dark streaking and dark spots, with gullies. Also appears at some non-dark spots in the dune ripple patterns. Some liquid type drainage erosion apparently at the lower left marked, originating at the dark shaded dune crest where light and shadow meet. More at www.marsroverblog.com , danajohnson0 topics. 04/2010

  • 2482 days ago via site
  • 67

Source- HiRISE IR and color JP2 images of north polar Mars dunes near the ice cap. The active streaking bright and dark fans, 3D surface alterations, and darkening polygon fracture venting, all are part of a chemistry and change of state, crystallinity display in the climate of Mars geological history, and current scenes. Araneiform 'Spider' formations in action.
Frame about 1/8 mi H x 1/4 mi W. Latitude 80 degrees.
ESP_016032_2600 - MRO/HiRISE catalog.
credit:NASA/JPL/University of Arizona 2010

  • 2482 days ago via site
  • 61

A Mars polar dark 'fan', commonly explained as a byproduct of the wind acting upon outgassing. This is a crystalline formation in action, with wild variations, seasonal, and ongoing. Araneiform 'Spider' formation, partially viewed, partly hidden. More: marsroverblog.com as username danajohnson0

  • 2482 days ago via site
  • 40

A one second timekeeper, as a former portrait. Ani-GIFs are fun and easy. Good for science displays, education. Photoscape editor and XNView editor, try them.

  • 2482 days ago via site
  • 63

Mini movies for the world online. Better than YouTube and other slow bloated presentations, and can be educational. Photoscape, editor.

  • 2482 days ago via site
  • 53

Enjoying the animated GIF alterations, with Photoscape 'free' image editor. Try it...

  • 2482 days ago via site
  • 53

Imagine my surprise as I recognized my lollipop picture on your photo album- nice to see someone collects pictures from my modeling events.

  • 2513 days ago via site
  • 61

Oklahoma earthquakes are part of a linear sequence of repeated occurrences, No. California, OK., Bahamas-Haiti, in one days timing, and no other earthquakes in the Western Hemisphere in some events. Oklahoma is reporting repeated 'quakes' this year, small

  • 2514 days ago via site
  • 91

HiRISE/MRO satellite image closeup of a Mars So. polar 'Araneiform' landform feature. ESP_014423_1040. discussion: http://www.marsroverblog.com/discuss-mars_polar_event_esp_011777_0950_giza_region.html

  • 2563 days ago via site
  • 96

Download this as an GIF file to retain the views of the mounded oval with an oval core 'Mars Polar Spider' with small 'arm' extensions. Topic display: " Mars_Polar_Event_ESP_011777_0950_Giza_region"
http://www.marsroverblog.com/discuss-mars_polar_event_

  • 2580 days ago via site
  • 89

Bright core of a Mars south polar 'Spider' dark fan vent streak source. Both ice and dark powder emit from these in seasonal eruptions. View on marsroverblog.com, as the topic " 'Mars Polar Event'...," the Open Forum. Image credit:NASA/JPL/University of A

  • 2580 days ago via site
  • 81

ESP_011777_0950 , ESP_011697_0980 .
Comparing Mars items on the South polar ice cap. An elaborately well ordered group of unexplained types with the seasonal changing terrain.

  • 2580 days ago via site
  • 72

A view of dark 'fans', vents, and a crystalline butterfly/angel shaped object on Mars, 12-25-2009.

  • 2580 days ago via site
  • 73

1 2 Next