Forest on Mars !?!?

It does not look green in here.

Shouldn't this be the same image?

PS: But it looks greener here.

Originally posted by ArMaP
It does not look green in here..
Shouldn't this be the same image?
PS: But it looks greener here

Very simple ArMaP its a trick of light and shadow...

Sun at one angle makes it look blacker, at another angle it reflects more green...

Elementary What?

Originally posted by ArMaP
It does not look green in here.

Shouldn't this be the same image?

PS: But it looks greener here.

Thanks ArMaP for large Gusev images!

I crop the segment of both images...and its look pretty green to me!

*And zorgon is totally right about Sun effect - when Sun is low light get warmer / richer and contrast are softer and easy on eye - the main light is warm yellow....

There is some thinking of prof. Deitrich of Berkley that totally resonate with my thinking, after all this Martian images are coming in:

-all look SO FAMILIAR:

"The rounded hills, meandering stream channels, deltas and alluvial fans are all shockingly familiar," said William E. Dietrich, professor of earth and planetary science at the University of California, Berkeley. "This caused us to ask: Can we tell from topography alone, and in the absence of the obvious influence of humans, that life pervades the Earth? Does life matter?"


They also looked at river meanders, which on Earth are influenced by streamside vegetation. But Mars shows meanders, too, and studies on Earth have shown that rivers cut into bedrock or frozen ground can create meanders identical to those created by vegetation.


"It's not hard to argue that vegetation affects the pattern of rainfall and, recently, it has been shown that rainfall patterns affect the height, width and symmetry of mountains, but this would not produce a unique landform," Dietrich said. "Without life, there would still be asymmetric mountains."

source

those thin lines you can see are marks left by dust devils. Infact the whole dark area looks like its made up of these.

img475.imageshack.us...

apod.nasa.gov...



[edit on 7-5-2007 by yeti101]

Well...than we have a question here: is there a possibility that this huge columns are swirling around organic SPORES .....

Clarke :

"The spores themselves are so inert," Clark says, "its a question, if you find a spore, and youre trying to detect
life, how do you know its a spore, [and not] just a little particle of sand? And the answer is: You dont. Unless
you can find a way to make the spore do whats called germinating, going back to the normal bacterial form."
That, however, is a challenge for another day.

Spores could stay hibernated for a long, long time...

Originally posted by zorgon
Very simple ArMaP its a trick of light and shadow...

I think I have heard that one before...

Sun at one angle makes it look blacker, at another angle it reflects more green...

That is why I asked if this isn't supposed to be the same image, if it is then why does it look different.


blue bird
That second image is not a different photo, it's a computer generated image. I suppose it's the same photo mapped over the height data.

seeing better mars (MRO video)


Great images - and what a feeling looking through eye of Mars Reconnaissance Orbiter over surface of another planet .


And you can also notice how the language has changed: from dead and dry planet to soaked with water in the past, climate changes, deltas, layers of different minerals, erosion, canals, very ancient world ......well, hope that this fantastic instruments ( we can see 5 feet across) and radar will take a closer look over 'dark' life like, vegetation like 'spots'...

seriously these mars post are getting way to ridiculous, i wish there was a junk filter.

i dont know what mar's atmosphere is composed of but i doubth tress would bee green over there

[edit on 5/8/2007 by razor1000]

Originally posted by razor1000i wish there was a junk filter.

Yeah I would love to filter out junk like your post

Umm this is the Space Exploration area you know and we are showing current interesting photos of the Martian surface...

so ummm exactly what is your problem with that? And please explain to me why trees wouldn't be green on another planet?

As you say... you don't know what the atmosphere is made of, well it has a LOT of Co2 (carbon dioxide) in it.. You know the stuff YOU breathe out, the stuff that plants on Earth breathe in....and in turn breathe out oxygen Look it up then you will actually know something

:shk:

Here is a little ditty.

Nasa speculating on the color of plant life on Extra-Solar planets.

Kiang and her colleagues calculated what the stellar light would look like at the surface of Earth-like planets whose atmospheric chemistry is consistent with the different types of stars they orbit. By looking at the changes in that light through different atmospheres, researchers identified colors that would be most favorable for photosynthesis on other planets. This new research narrows the range of colors that scientists would expect to see when photosynthesis is occurring on extrasolar planets. Each planet will have different dominant colors for photosynthesis, based on the planet’s atmosphere where the most light reaches the planet’s surface. The dominant photosynthesis might even be in the infrared.

Alien Plantlife

Of course, Mars in not an Extra-Solar planet. It's a neighbor.
But part of the research above, invloves figuring out which wavelengths of light are filtered by a planets atmosphere.

With Mars, and it's extremely thin, but dust filled, atmosphere, plantlife that MAY have survived somehow, could utilize different wavelengths. And therefore be something other than green.

I found something else.

This relates to microorganism "hardiness".

From Space.com

Surviving space

The microscopic interstellar travellers are now racing out of the solar system at speeds of between 7 and 11 miles per second, but are they still alive?

"Survival is more likely than any 'thriving,'" said Mark Burchell of the University of Kent in the UK. Cold temperatures would likely plunge a microbe into a hibernation-like condition called a spore state.

Bacteria have been revived on Earth after millions of years of dormancy and experiments involving the exposure of bacteria and lichens to space have revealed just how tough these simple organisms are.

Galactic Bacteria

Again, this is not dealing directly with Mars.
But it does make a point, that at least the smaller organisms could still be on Mars. Waiting for a Wake up call.

Originally posted by spacedoubtAnd therefore be something other than green.

Nice work I'll buy that one, even though its from NASA

Originally posted by spacedoubt
But it does make a point, that at least the smaller organisms could still be on Mars. Waiting for a Wake up call.

Just like the 400,000 year old ones under the ice in Antarctica...

The question is do we really want to wake them

[edit on 9-5-2007 by zorgon]

They may get woken up anyway. Has anyone heard of the desrt blooming feilds of flowers in the Australian Outback? (desert areas). It only happens once in a while and the fauna survives in a seed state for years with no water. I have read CNN reports that mars is also heating up which might release some of that trapped water..........

On Mars vegetation will be green mostly, like on Earth - it's the same yellow dwarf Sun, and atmosphere is not thick, like on Venus or Titan - where pigmentation would be less.


Definitely color of plants on for example, planets orbiting Red Dwarf - would be different...scientists would know, by looking at the changes of light - when going trough different atmosphere, what colors would be favorable or photosynthesis on respected planet.

Green, yellow or even red-dominant plants may live on extra-solar planets, according to scientists whose two scientific papers appear in the March issue of the journal, Astrobiology..............................Scientists have long known that the chlorophyll in most plants on Earth absorbs blue and red light and less green light. Therefore, chlorophyll appears green. Although some green color is absorbed, it is less than the other colors. Previously, scientists thought plants are not efficient as they could be, because they do not use more green light

“The dominant photosynthesis might even be in the infrared.“ (( if we can have an infra red vision - we could see green colors in bright red )).

source

Planets around F stars, which are hotter than our G-class Sun, have peak PFD in the blue. K-star planets peak in the red-orange. Because of their abundance visible radiation, F- and K-star planets are likely to have very similar photosynthesis to that on Earth, with slight variation in the dominant visible color. M-star planets, however, peak in the near infrared and have very little visible light. Because mature M stars past their UV flaring stage will not produce UV radiation at damaging levels to organisms, anoxygenic photosynthesis in the NIR could have the competitive advantage on land.

[edit on 9-5-2007 by blue bird]

One thought:

Chlorophyll aper green coz it reflect light in green spectrum and it absorbs in infra red - “dark spots“ on Mars than look “dark“ in infra red images!?

Hubble:

Exposures taken through separate red, green and blue filters are used to create a color image of Mars. The red filter shows the best surface detail. Mars' atmosphere scatters blue light, much like that of Earth, thus Martian surface detail is obscured in the blue filter exposure which permits clouds to be seen easily. A polar hood of clouds over Mars' north pole is evident and a thin sheet of morning clouds can be seen on the western limb.

source



[edit on 9-5-2007 by blue bird]

Sure, green is a good probability.
But who knows the composition of Mars' atmosphere when these
theoretical microbes first began to flourish?
What was the ratio of gasses?
Where were the most hospital regions at the time?
What latitude?
Was there atmospheric refraction?
Did they live in the oceans? If so, how deep?


Whatever may be awaiting reanimation may possess traits that are legacies of Mars past.

The living Martian landscape...

*gullies in Terra Sirenium
-originale image from MRO:




source


*smaller image:




** and Earth - Orange lichens encrust rocks on Penguin Island, South Shetlands:




source


** Tindra (( Alaska)) lichen:


source


** more lichen:



** and Mars- same region...sharpened: