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Location: UFOUpDatesList.Com > 2007 > Jun > Jun 15

Re: Martian Colours - Tarbell

From: Michael Tarbell <mtarbell.nul>
Date: Fri, 15 Jun 2007 10:28:40 -0600
Fwd Date: Fri, 15 Jun 2007 21:20:24 -0400
Subject: Re: Martian Colours - Tarbell

>From: Nick Balaskas <Nikolaos.nul>
>To: UFO UpDates - Toronto <ufoupdates.nul>
>Date: Thu, 14 Jun 2007 21:06:42 -0400 (Eastern Daylight Time)
>Subject: Re: Martian Colours [was: Mars Rover Finds 'Puddles'...]

>>From: Martin Shough <parcellular.nul>
>>To: <ufoupdates.nul>
>>Date: Thu, 14 Jun 2007 19:24:45 +0100
>>Subject: Re: Mars Rover Finds 'Puddles' On The Planet's Surface


>>You said that we "simply" have to look at which Mars images show
>>the American flag with the "true" colours of a flag on Earth to
>>see which are genuine. But the comparison is far from simple, it
>>seems to me.

>Thank you Martin for taking the time to properly research and
>write-up a long but very informative reply. To keep my reply
>short, I will focus on the colours of the U.S. flag on the many
>Mars landers that NASA has released and argue that they cannot
>be the true colours.

>Just what would the red, white and blue "Old Glory" look like to
>Martians (with eyes similar to our own) or future visitors from
>Earth? The red stripes would still look red, but would the white
>stars and strips look pinkish and the blue background look more
>purplish? I don't think so.

>I have seen pictures of Mars with whitish haze within deep
>craters and valleys and pictures of Martian rocks taken by the
>two Viking landers that are covered by a layer of white frost.
>Why were these clouds and layers of frost not pinkish in
>apprearance just like the pinkish looking white stripes of the
>U.S. flag? Were NASA's colour censors caught off guard this time
>or, more likely, are NASA's colour adjustments purely arbitrary
>and misleading?

I think you may be underestimating the effect of light reflected
diffusively from Martian soil as a source of illumination. As
you say, this does not impart a reddish color to the sky itself,
but objects near ground level that have non-horizontal surfaces
will definitely display some of this color, and depending on
orientation, perhaps predominantly so. White clouds and haze
viewed from above are showing only the component due to direct
sunlight. Likewise for frost distributed horizontally at ground

I do find it somewhat puzzling that the color calibration
problem is apparently so troublesome, which probably indicates
that I don't fully appreciate the problem. It wouldn't seem to
be that difficult to analyze the spectrum of light incident from
the various sources - direct sunlight, scattered atmospheric,
reflected from soil, etc. - that are illuminating the target
object (e.g., the US flag). This would seem sufficient to tell
us what red, white, and blue _should_ look like under the
ambient conditions.


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