It's two years old - and for some reason Spaceref decided to feature it a few days ago without explaining why. Quite odd.

http://twitter.com/HiRISE/status/4995880269 :

"Bouncing Boulder Blocks a Slope Streak http://tinyurl.com/ykp5q92 One of our fans pointed out how cool this image is!"

Some colourised crops of the amazing layers visible in the new MRO image of Arabia Terra ( http://hirise.lpl.arizona.edu/ESP_014033_1910 )

http://twitpic.com/q31tf/full

http://twitpic.com/q31ul/full

http://twitpic.com/q31wk/full

thx for those crops Stu. Looks like some dried up terraced hillsides. Those Martians must have really been into gardening!

Stu,
Your work rocks!

(next time I am in England, I need to stop by for a tutorial from the color master! What is your hourly rate?)

Cheers

Also some view of Arabia Terra plus more on this "must see" video, whether or not you'll like the music associated (I did): http://nasawatch.com/archives/2009/11/todays-video-hi.html

Magnificent dunes, with extra added gully goodness!

http://twitpic.com/rfom1/full

( from http://hirise.lpl.arizona.edu/PSP_001558_1325 )

In the spirit of HiRISE releasing some DTMs, I thought I'd put up a couple of shots of my recent attempts at making some of these monsters.

I made it using exactly the same method (hopefully!) as the USGS, so switching between ISIS and SocetSet. It was one of the first I made, so it's got some striping in the overlaid orthoimage, but not in the underlying DTM. The recent hiequal command in ISIS has got rid of that striping now, but I don't have images of that attempt with me at the moment.

Whole DTM:
Click to view attachment

Close-up:
Click to view attachment

I thought I'd put them up here seeing as there's some chat over in the img2png thread. I've got to say that even though I use them everyday in my job, I still have to pick my jaw off the floor on a regular basis - awesome camera!

Pete

ps Doug - think you could work some of your movie magic with this?

Wow, magnificent view (especially second image)!
I always regret, that processing of raw HiRISE images are beyond capabilities of my current computer and internet connection.

That's OK. As you know, there are plenty of wonderful views to discover in older data sets that are not so difficult for your computer!

Yes!
So much to do and so little time.
Thanks for NASA, ESA, JAXA, IKI (and others) and their archives!

Great work, pgrindrod !

the possibilities with those ultra-large, ultra-high precision data sets given to us by HiRISE are endless ...
It will take years and decades to fully realize the potential buried within this ocean of data



How true ...

Interesting. Part of this layer seems to have collapsed. Impact crater or gravity?

http://hirise.lpl.arizona.edu/ESP_014033_1910

Almost looks like an impact into really friable sandstone, and then gravity took over.

Here's an interesting image of some Mars spires. Judging from the length of the long shadow near the center of the image, the spire casting that shadow must be between 30m high (assuming a sun elevation of 30 degrees) and 50m high (assuming the sun at 45 degree elevation). Must be quite a sight from ground level.
(Unfortunately, I did not take note of the image number, and now I can't find it anymore. I just took a screen grab. I think it was somewhere on the flank of one of the Martian volcanoes.)
Click to view attachment

Just from an aesthetic point of view, I find this image exceedingly beautiful:
(HiRISE Image PSP_010221_1420)
Click to view attachment
When I start browsing HiRise images, I could keep on for hours.

Colourised view of gullies...

Click to view attachment

For those wondering, at some point, yes, I will be doing this

ADMIN OOPS!
Accidentally lost this message when it was moved to this thread.
Sorry Den.

Den posted (along the lines of):
Amazing image from Hellas.
http://hirise.lpl.arizona.edu/ESP_016022_1420
Was it a lake at one time?

Wow... a natural "cairn" on Mars...

(cropped from ESP_016036_1370)

Click to view attachment

What you mean "natural?" It's OBVIOUSLY an artifact.

More and more ammazing beauty
Click to view attachment

...okay, THAT is flat-out cool as hell!!! How did you define your colorization scheme? That middle stripe of orange in each of the dune valleys is quite striking!

Aren't they the dune peaks? If they aren't then something truly odd is going on with all those boulders on the tops of the dunes...

Yeah, you must be right. It's hard (for me, anyhow) to gauge perspective in this image.

My guess--Orange stripes are dune peaks, rocks at valley bottom--like dunes on bedrock around Opportunity.

No the dunes are very dark and the bedrock is light and strewn with boulders. Really plays games with your shadow perception.

It actually helps - as is often the case with HiRISE images, I think - if you look at the black and white version first. Then it is clear that the boulders are "filling in the gaps" between the dunes...

Click to view attachment

(very cool dust ripple filled crater between the dunes there, don't you think?)

The bright "stripe" along the top of the dunes appears to be the dunes' actual peak..?

Click to view attachment

Very easy: copy-paste from a link @jpl

The orange stripe in the color image is actually in the slope of the dune face. It's probably just a different grain size than the surrounding material, as that's typically what HiRISE colors indicate. The dune crest is the smooth-looking dark portion in the grayscale image.

here is a quick try at a single-image-SFS-DEM from the JPG above:

Click to view attachment
Click to view attachment
Click to view attachment


Note that in this case the algorithm in its current implementation does have troubles with the extreme albedo differences between the blackish dunes and the light colored rock (i.e variations in brightness that are not caused by illumination only) which causes distortions in the low frequency variations ...

Nevertheless the visual impression turned out quite interesting so I decided to post it anyway (and the vista does give a general idea on how this scene might look like when seen from the ground )

In the CTX image P21_009058_1349_XI_45S255W
I saw this strange feature. What is this?

Freaky-looking thing. The whole area looks like either an outflow plain or perhaps even a dust-covered glacier. Perhaps an oblique crater pair that was subsequently overrun by an ice or water flow?

I'd go with a deposit leftover from some sorta glacier-thingy. Almsost seems like there is a trail behind it. There's a lot of areas nearby that look like they slumped out.

Nice catch; that is truly weird. Based on other nearby features I'd say it was the remains of a multiple crater rim but it looks truly odd. Note the image is not HiRISE but CTX! I checked HiWish and there is no HiRISE image over the feature. I won't preempt your find; you should go to HiWISH and ask for a higher resolution view!

I don´t think this is part of a crater wall. Note how flat-topped and steep-sided it is, quite unlike the variously degraded craters around this feature. My bet is that these are
esker.

There seems to be a lot of ice-related geology in this area. Those lobes coming down from the mountain in the center of the scene look like ice sheets with crevasses and flow lines.

You're right. Forgot to mention that. There is no "The power of CTX" thread yet...


You can go right ahead if you (Hi)wish. But I don't think a higher resolution image would help in this case. The HiBlog warns:

First, make sure you justify the image in terms of small-scale features that might be seen, things like boulders or thin layers or dunes, not giant volcanoes or channels. We need to know how HiRISE’s meter-scale resolution is necessary, especially if there are existing MOC, CTX, HSRC or other images of the area.

Interesting. let's see how this thing might look like from the ground
here is my attempt at rendering a few 3D views of the formation, obtained from the single-image SFS DEM algorithm (described in more detail in the other thread)

Click to view attachment
Click to view attachment
Click to view attachment
Click to view attachment
Click to view attachment
Click to view attachment

Nice work Nirgal. Looks very flat. Judging by the shadows I thought it had more relief.

Slightly different topic: Has anyone else had trouble with the HiRise site last couple of days? The Layout is all messed-up in my browser. I can't see the links to the IAS-viewer images anymore.

This is very strange. I can see those links again in Firefox, but in IE8 they are still broken. Does anybody know what could be causing this?

The "Crater garden" west of Victoria from ESP_016644_1780 (24 March):

Click to view attachment

Boomboomboom...! Who counts the number of impacts?

p.s. I added a bit sharpness

Fresh looking crater (crater-pair?) about 9.5km south of Oppy's present position (also from ESP_016644_1780).

Oppy's Lewis and Clark trek across the great martian desert of Meridiani...

Click to view attachment

What part of the route is this? Everything's beginning to blur together for me, it's been so long and so far...

Beginning of the westward route. Those are Nereus and Nautilus at the top of the image.

Thanks.
That was so long ago, it's hard to believe so much time has passed since we left Victoria, but it has.

A crop from http://hirise.lpl.arizona.edu/PSP_002419_1675

Click to view attachment

Ansell Adams on Mars...

how about this from the same hirise image
Click to view attachment
or
Click to view attachment

New astropoem, dedicated to all the people on the MRO and HiRISE teams..

http://twitpic.com/1bb60q

( text only version: http://astropoetry.wordpress.com/2010/03/2...l-adams-on-mars )

Today's batch of new releases includes an image of Spirit's landing site, taken Feb 15th, on which Spirit herself can clearly be seen. Here's a colourised crop...

Click to view attachment