🚀 go-pugleaf

On 4 Mar, 20:41, Mitchell Jones <mjo...@21cenlogic.com> wrote:
> A year or so back I posted a theory in this group concerning the
> possibility of lakes on Mars. My idea, boiled down to essentials, was
> that when the conditions supportive of a hot spring are present on Mars,
> a pool of liquid water will be found, and that if the pool is large
> enough, it will be proper to call it a lake.
>
> In Yellowstone Park here on Earth, for example, pools of liquid water
> are present in winter, even when the temperature of the surroundings is
> far below the freezing point of water. All that is required is (a) the
> presence of a hydrothermal vent with a heat source sufficient to keep
> the water from freezing, and (b) atmospheric pressure sufficient for
> water to exist in liquid form.
>
> If the geology of Yellowstone were transported to Mars, and the
> hydrothermal vents were placed at a low enough altitude--e.g., in a deep
> Martian crater or valley--so that the atmospheric pressure would support
> liquid water, then those very same pools of liquid water would be
> present on Mars, even if temperatures in most of the surrounding area
> were below freezing.
>
> Since we obviously cannot say that such conditions are impossible on
> Mars, it seems reasonable to keep such a possibility in mind when
> evaluating the various photos that are beamed back to Earth by Mars
> orbiters and rovers.
>
> This morning I was mucking around athttp://hirise.lpl.arizona.edu, and
> decided to see if NASA's Mars Reconnaissance Orbiter had any new
> pictures of Reull Vallis, where a European Space Agency photo a couple
> of years ago had seemed to reveal the presence of a lake on Mars. I
> clicked on the "Search" menu at the right side at the top of the page.
> That took me to the search page:
>
> http://hirise.lpl.arizona.edu/anazitisi.php
>
> Next I typed in "reull vallis" and hit the "Search" button, obtaining
> thumbnails for page 1 of 11 pages of photos, some of which pertain to
> Reull Vallis.
>
> I then worked my way forward by clicking the "Next" button at the bottom
> of each page of thumbnails, scanning each photo to see if it was of
> interest, until I came to the thumbnails for page 7. Here is a direct
> link which will save you the trouble of clicking through all of them:
>
> http://hirise.lpl.arizona.edu/apotelesmata.php?q=reull%20vallis&order...
> ease_date&page=7
>
> At that point, the greyscale of Cerberus Fossae near Athabasca Vallis
> (row 2, column 4) caught my eye, because it looked very similar to the
> putative lake at Reull Vallis. To see the enlarged image, either click
> on the thumbnail or go to the following link:
>
> http://hirise.lpl.arizona.edu/PSP_003650_1900
>
> When the enlarged image of the greyscale of Cerberus Fossae came up, the
> resemblance to the putative lake at Reull Vallis, discussed here a
> couple of years ago, became even more pronounced. As a result, my
> expectation was that, if I could find a color photo, the colors would be
> those appropriate to a lake. And, when I noticed several links to
> related photos on the right side of the page, I began to hope that I
> could test that prediction. Result: I clicked on the link entitled "RGB
> color (non-map projected)." The following link will take you there
> direclty:
>
> http://hirise-pds.lpl.arizona.edu/PDS/EXTRAS/RDR/PSP/ORB_003600_00369...
> P_003650_1900/PSP_003650_1900_RGB.NOMAP.browse.jpg
>
> The color image of Cerberus Fossae which you will get will be tall and
> narrow. Scroll down until you come to a deep canyon with lots of blue at
> the bottom. Is that a lake on Mars, or just a canyon with lots of blue
> material at the bottom? If the latter, then I guess it is just another
> coincidence that I expected the color photo to show blue at the bottom
> of that canyon. (It must be another one of those pesky "false color"
> photos! :-)
>
> --Mitchell Jones
>
> *****************************************************************
> If I seem to be ignoring you, consider the possibility
> that you are in my killfile. --MJ

Quite likely and, except per accidens, I won't be reading you,
either.

Anyway, look at:
http://www.enterprisemission.com/
--
'foolsrushin.'

PS: Hoagland is, of course, a twit trying to catch up with your
insights! Artificial structures on the moon? Nah, couldn't be! Stoopid
guy!