Comments on: New high res images from mars

By: D. Miller

D. Miller — Sat, 08 May 2010 13:30:41 +0000

“Quick update on Stereo Photo Maker. It works fine under Wine in Ubuntu 9.04”

I have been doing this as well. So far I have only had one problem, but it’s a biggie: Unable to save results. When I try to save a stereo image, it seems to work, but the there is no image in the content, only solid black. When I try to save Left/Right images, the program aborts before the Save dialog appears. Has anyone observed/resolved this?

Thanks. DOM

By: Wyatt

Wyatt — Mon, 07 Sep 2009 18:25:05 +0000

Scott: Cool!

By: Scott Rowed

Scott Rowed — Mon, 07 Sep 2009 17:45:19 +0000

Quick update on Stereo Photo Maker. It works fine under Wine in Ubuntu 9.04, especially as it doesn’t “install” in Windows, but just runs as an .exe file saved on the hard drive. In Linux you just right click on the .exe file and select “open with Wine…”.

By: Nathan Myers

Nathan Myers — Sun, 06 Sep 2009 00:42:01 +0000

I like that they have really no faint notion how these things formed. Features a little less intermittent are often described as “collapsed lava tubes”, ludicrously when they’re a mile wide. With a few more breaks, they’re called “grabens”. With enough breaks, identical features are called a “series of impact craters”.

By: Scott Rowed

Scott Rowed — Sat, 05 Sep 2009 22:59:35 +0000

Thanks for the link. Really incredible images, especially in 3D. I’m not a big fan of anaglyph images (red/cyan stereo glasses), but NASA also has excellent left/right stereo images you can download. To view you can use free stereo software such as Stereo Photo Maker (windoze only, but may work in Wine). I also notice that there are Linux stereo viewers available now as well.
STM http://stereo.jpn.org/eng/stphmkr/

To view I use a handheld Screenscope, which works well and cost less than $50, but I’d also like to try nVidia’s 3D Vision system, which may be the best way to view stereo at this point.
Screenscope http://www.ascscientific.com/stereos.html
nVidia system http://www.nvidia.com/object/3D_Vision_Overview.html

By: Hank Roberts

Hank Roberts — Sat, 05 Sep 2009 20:49:47 +0000

Is that an isolated glancing impact feature?

Can’t tell without context around it but in some ways it looks like a tunnel gully — I’ve watched these happen in N. California on small scales after a fire when a whole lot more water moves through a seasonal watercourse, cuts a narrow deep notch down through loose material, then hits a hard layer and makes a wide tube underground that becomes potholes.

On a steep slope like I’m familiar with the sides slump in so they’re transient; but in Australia and New Zealand they form quite large long-lived series of potholes:

http://www.maf.govt.nz/mafnet/rural-nz/sustainable-resource-use/land-management/erosion-risks/ag4.gif

http://www.maf.govt.nz/mafnet/rural-nz/sustainable-resource-use/land-management/erosion-risks/agricult.htm

http://www.usedrains.org.au/images/advanced_tunnel_erosion.jpg

http://www.usedrains.org.au/detrimental_effects.htm

I recall seeing an earlier Mars photo that reminded me of this kind of development that included both a long ‘crack’ opening and potholes along the same approximate line.

And Mars would be a likely site for the material these things form in — large amounts of loosely consolidated aeolian material on hard sloping surfaces — if there was ever some intermittent water flow.

By: Jeb, FCD

Jeb, FCD — Sat, 05 Sep 2009 20:06:34 +0000

That’s wormsign.

By: MadScientist

MadScientist — Sat, 05 Sep 2009 18:59:53 +0000

Haven’t they spackled the walls at Entebbe yet?

I like that large hole at the top; you can see it as a pit or as a bump. 🙂