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Did A Giant Impact Create The Two Faces Of Mars?
New Scientist ^ | 3-15-2007 | David Shiga

Posted on 03/15/2007 2:14:24 PM PDT by blam

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http://webster.aip.org/enews/physnews/1999/split/pnu432-3.htm

Physics News Update

The American Institute of Physics Bulletin of Physics News

Number 432 (Story #3), June 7, 1999 by Phillip F. Schewe and Ben Stein

THE SURFACE OF MARS has been mapped to 13-meter precision, better than for some places on Earth. Laser light sent from and returning to the orbiting Mars Global Surveyor spacecraft reveals that the southern hemisphere is one big highland (6 km higher) compared to the northern hemisphere. Surface water, if there was any, would have collected in the North, although there is not yet definitive proof of any boreal ocean. One thing that is known about the northern lowland: it is the flattest place in the solar system. The South's elevation is due at least in part to an immense amount of material raised during an ancient impact which fashioned a huge crater known as the Hellas basin. (Science, 28 May 1999.)


21 posted on 03/15/2007 10:15:25 PM PDT by SunkenCiv (I last updated my profile on Sunday, March 11, 2007. https://secure.freerepublic.com/donate/)
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To: jiggyboy; aruanan

The main difference between the two shots is that in the earlier shot, "The Face" is made up of about three dozen pixels. The Face on Mars is indeed an artifact, but it is merely the artifact of the Viking orbiter camera resolution.


22 posted on 03/15/2007 10:22:23 PM PDT by SunkenCiv (I last updated my profile on Sunday, March 11, 2007. https://secure.freerepublic.com/donate/)
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To: SunkenCiv
I heard Hoagland the other night, still defending it as a non-natural structure. "Atmosphere's too thin to carve...".

But nothing about cosmic collisions.

23 posted on 03/15/2007 10:54:32 PM PDT by Calvin Locke
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To: Calvin Locke

Heh... the atmosphere's too thin to carve, but apparently just thick enough (similar to Earth's at 40 miles altitude -- Everest is about six miles) to support a civilization. ;')


24 posted on 03/16/2007 10:26:35 PM PDT by SunkenCiv (I last updated my profile on Sunday, March 11, 2007. https://secure.freerepublic.com/donate/)
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To: SunkenCiv

Excellent point. But, that was then, and this is now, and after the Martians built "the face", they migrated to Earth because Mars' atmosphere was being blown away by global warming caused by Martian activity.


25 posted on 03/16/2007 10:41:21 PM PDT by Calvin Locke
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To: Calvin Locke

:') That's precisely my point -- if the atmosphere has thinned out and destroyed the supposed civilization, how can Hoaxland claim that it was previously "too thin to carve"? As is generally the case, he's full of it.


26 posted on 03/16/2007 11:03:50 PM PDT by SunkenCiv (I last updated my profile on Sunday, March 11, 2007. https://secure.freerepublic.com/donate/)
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Hey, someone was bound to...
Image and video hosting by TinyPic

27 posted on 03/16/2007 11:08:28 PM PDT by SunkenCiv (I last updated my profile on Sunday, March 11, 2007. https://secure.freerepublic.com/donate/)
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To: SunkenCiv
Not to defend Hoagland, but the difference between he and Algor is that if you remove the huckstering, Hoaxie actually knows stuff, and can be entertaining.

And he has a sense of humor too.

However, as a taxpayer, I'm insulted that he wants NASA to drop everything to chase after his personal white whales.

I sometimes think he's a NASA plant to hype it's funding requests to they can hire even more astronauts to go crazy sitting around doing nothing for a decade or more.

28 posted on 03/17/2007 7:38:19 AM PDT by Calvin Locke
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To: Calvin Locke

:')


29 posted on 03/17/2007 7:57:13 AM PDT by SunkenCiv (I last updated my profile on Sunday, March 11, 2007. https://secure.freerepublic.com/donate/)
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To: KlueLass; texasredhead8712

Here's a Catastrophism ping list topic. This one shows up at the top, but is the last of the ones I've pinged you two to. :')


30 posted on 03/24/2007 7:29:34 PM PDT by SunkenCiv (I last updated my profile on Saturday, March 24, 2007. https://secure.freerepublic.com/donate/)
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Spitzer Sees the Aftermath of a Planetary Collision
 
Catastrophism
 
· join · view topics · view or post blog · bookmark · post new topic · subscribe ·
 

31 posted on 02/27/2011 7:13:40 PM PST by SunkenCiv (The 2nd Amendment follows right behind the 1st because some people are hard of hearing.)
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To: IllumiNaughtyByNature; SunkenCiv; blam
Your image is the original 1976 very low resolution image from the Viking probe. Much higher res images have been coming back for the last dozen years starting around 98-99, e.g.

http://nssdc.gsfc.nasa.gov/planetary/mgs_cydonia.html

That image shows straight lines and Bezier curves on a three-mile scale; Ma Nature don't do stuff like that.

Most interesting new photo from the neighborhood of Mars is the HIRISE image of Phobos:

In fact if you do a google search on just "phobos", that image is now the first item that turns up. That's right, real moons are supposed to be made out of dirt and green cheese and stuff like that which doesn't reflect light all over the place and can't be formed into planks like that. As Hoagland says, you can almost count the rivets.

32 posted on 05/28/2011 5:20:10 PM PDT by wendy1946 (Bork Obunga; Before he borks you...)
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To: wendy1946
Univ. of Az may be claiming some sort of a stupid copyright on that picture now. Here's a copy saved off before that happened, again Mars' little metallic moon Phobos:

Photobucket

33 posted on 05/28/2011 5:25:27 PM PDT by wendy1946 (Bork Obunga; Before he borks you...)
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