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Traces of Life on Mars? (Read 20954 times)
Bobby.
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Re: Traces of Life on Mars?
Reply #75 - Sep 27th, 2013 at 9:55pm
 
muso wrote on Sep 27th, 2013 at 3:08pm:
Bobby. wrote on Sep 27th, 2013 at 12:53pm:
Surely if we believe that life evolved here on earth just
from the normal interaction of molecules in water then
it had enough time to evolve on Mars?

If so then we must be almost 100% certain that evidence of life will be found on Mars -
it's normal & natural for it to happen!


To come to that conclusion, you need to answer these questions:

Given the right conditions, what is the probability that life will come about spontaneously?

So if we had all the nutrients and raw materials, how likely is that life will come into being?

How many times has life actually started from scratch over the past say 4.5 billion years?

Are any of the life forms on Earth unrelated to all other forms of life?

What are the optimum initial conditions for life to initiate?

Did life originate on Earth in the first place? 

What is the mechanism for abiogenesis?



I don't know the answer to any of those questions.

However:

Are any of the life forms on Earth unrelated to all other forms of life?

As far as I know all life has similar DNA on earth which
means a common ancestor of everything.
That is not a good sign of alternative life for Mars because
if life started there too then it would probably have different chemistry.
e.g.
Our DNA is made of -
adenine (A), , thymine (T), guanine (G) and cytosine (C).

Why wouldn't alternative DNA be based on say 10 different molecules?
We should be able to find life that wasn't based on ATGC on earth.
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muso
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Re: Traces of Life on Mars?
Reply #76 - Sep 28th, 2013 at 11:05am
 
Well, the fact that all life is related, demonstrates that life started only once over a period of 4.5 billion years.

Given a number of  identical planets, how many of these will develop life, and how many will remain barren?

In how many of these planets has the spark of life been ignited, only to be snuffed out by a cataclysmic impact?

There are just too many unknowns.  I think your 100% certainty was based on a sample of one. The only life we know is the life that is endemic to this planet. 
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Bobby.
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Re: Traces of Life on Mars?
Reply #77 - Sep 28th, 2013 at 11:15am
 
muso wrote on Sep 28th, 2013 at 11:05am:
Well, the fact that all life is related, demonstrates that life started only once over a period of 4.5 billion years.

Given a number of  identical planets, how many of these will develop life, and how many will remain barren?

In how many of these planets has the spark of life been ignited, only to be snuffed out by a cataclysmic impact?

There are just too many unknowns.  I think your 100% certainty was based on a sample of one. The only life we know is the life that is endemic to this planet. 


But could there be some other life form on our
planet that doesn't use adenine (A), , thymine (T), guanine (G) and cytosine (C) ?

Maybe 10 different molecules making information that can reproduce?

I wonder why it's only 4 molecules that we have found so far?
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muso
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Re: Traces of Life on Mars?
Reply #78 - Sep 28th, 2013 at 8:45pm
 
Bobby. wrote on Sep 28th, 2013 at 11:15am:
muso wrote on Sep 28th, 2013 at 11:05am:
Well, the fact that all life is related, demonstrates that life started only once over a period of 4.5 billion years.

Given a number of  identical planets, how many of these will develop life, and how many will remain barren?

In how many of these planets has the spark of life been ignited, only to be snuffed out by a cataclysmic impact?

There are just too many unknowns.  I think your 100% certainty was based on a sample of one. The only life we know is the life that is endemic to this planet. 


But could there be some other life form on our
planet that doesn't use adenine (A), , thymine (T), guanine (G) and cytosine (C) ?

Maybe 10 different molecules making information that can reproduce?

I wonder why it's only 4 molecules that we have found so far?


Well, don't forget about urasil, which is the corresponding base for thymine in RNA.

This Wikipedia Article might interest you if you hadn't heard of it previously:

http://en.wikipedia.org/wiki/RNA_life

Google "RNA based life forms" too.


You probably remember the arsenic containing bacterium that was subsequently found to prefer Phosphorus.

http://www.nature.com/news/arsenic-life-bacterium-prefers-phosphorus-after-all-1...

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Bobby.
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Re: Traces of Life on Mars?
Reply #79 - Sep 28th, 2013 at 11:52pm
 
Hi Muso,
RNA is not different enough - from your link:

Quote:
RNA also uses a different set of bases than DNA—adenine, guanine, cytosine and uracil, instead of adenine, guanine, cytosine and thymine. Chemically, uracil is similar to thymine, differing only by a methyl group, and its production requires less energy.


The 2nd link is also using a form of DNA - I think?

None of these life forms are too removed from normal DNA
to be justified as completely different life forms with no link to us.

It's very interesting because if only a base 4 system of storing information can be found on earth
then it says we may never find alternative life elsewhere.

Why can't life exist in binary form - or base 2?
All our computers store information that way so it's still valid
& seems the most simple way to store information for life to reproduce.
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muso
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Re: Traces of Life on Mars?
Reply #80 - Sep 29th, 2013 at 8:30am
 
I wasn't suggesting that RNA was in any way different. If anything, it could be a precursor for DNA.

Are you following Craig Venter's work on synthetic life?

http://www.newscientist.com/article/dn23266-craig-venter-close-to-creating-synth...
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Bobby.
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Re: Traces of Life on Mars?
Reply #81 - Sep 29th, 2013 at 8:32am
 
muso wrote on Sep 29th, 2013 at 8:30am:
I wasn't suggesting that RNA was in any way different. If anything, it could be a precursor for DNA.

Are you following Craig Venter's work on synthetic life?

http://www.newscientist.com/article/dn23266-craig-venter-close-to-creating-synth...



No I haven't but that was an interesting article.
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Re: Traces of Life on Mars?
Reply #82 - Sep 30th, 2013 at 9:54pm
 
muso wrote on Sep 29th, 2013 at 8:30am:
I wasn't suggesting that RNA was in any way different. If anything, it could be a precursor for DNA.

Are you following Craig Venter's work on synthetic life?

http://www.newscientist.com/article/dn23266-craig-venter-close-to-creating-synth...


eugenics has nothing to do with

water and life being present

throughout this solar system, and beyond

and so it is

namaste

- : )
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ॐ May Much LOVE and CHRISTS LIGHT be upon and within us all.... namasté ▲ - : )  ╰დ╮ॐ╭დ╯
it_is_the_light it_is_the_light Christ+Light Christ+Light  
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Re: Traces of Life on Mars?
Reply #83 - Oct 1st, 2013 at 12:14pm
 
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Re: Traces of Life on Mars?
Reply #84 - Oct 5th, 2013 at 9:04am
 
http://adsabs.harvard.edu/abs/1977Metic..12..459H

Was there anything special about the early solar system that is different from later periods?

Aluminium 26 is one.

There has been a suggestion that Aluminium 26 in the nucleus of comets may have provided a warm moist  environment for simple life forms to eventuate. 
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Winston Smith
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Re: Traces of Life on Mars?
Reply #85 - Oct 6th, 2013 at 5:02am
 
What would finding life on Mars mean?
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Bobby.
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Re: Traces of Life on Mars?
Reply #86 - Oct 6th, 2013 at 9:48pm
 
Winston Smith wrote on Oct 6th, 2013 at 5:02am:
What would finding life on Mars mean?



That life exists not only on earth.
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Chimp_Logic
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Re: Traces of Life on Mars?
Reply #87 - Oct 6th, 2013 at 11:21pm
 
Bobby. wrote on Oct 6th, 2013 at 9:48pm:
Winston Smith wrote on Oct 6th, 2013 at 5:02am:
What would finding life on Mars mean?



That life exists not only on earth.


There is one other scenario
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Bobby.
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Re: Traces of Life on Mars?
Reply #88 - Oct 7th, 2013 at 10:22am
 
Chimp_Logic wrote on Oct 6th, 2013 at 11:21pm:
Bobby. wrote on Oct 6th, 2013 at 9:48pm:
Winston Smith wrote on Oct 6th, 2013 at 5:02am:
What would finding life on Mars mean?



That life exists not only on earth.


There is one other scenario


Dear Chimp,
And what might be that?

Actually if life was discovered on Mars & it had a base 4 DNA like ours
it would prove that life on earth originated on Mars & came here via bacteria in asteroids.
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it_is_the_light
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Re: Traces of Life on Mars?
Reply #89 - Oct 7th, 2013 at 11:50am
 
LIGHT is the constant

omnipresent throughout within and without

the all that is transcending time space and stars

and all planets

http://beforeitsnews.com/space/2013/10/emp-attack-warning-professor-mccanney-on-...

EMP Attack Warning Professor McCanney on The John Moore Show Update On Ison – Now Past Mars Ison Went Green – OMG Mars Itself has gone COMET!!!!!!!

Saturday, October 5, 2013 4:12

MONUMENTAL SOLAR SYSTEM CHANGES & FIRE IN THE SKY: “Planet Mars Gone Comet” – Professor James McCanney Declares That Mars Has Acquired A Coma From Its Electrical Interaction With Comet ISON, The Principal Reason For The Government Shutdown Of NASA? Great Listen on this clip below John interviewing Professor McCanney regarding Nasa shutting down.

...

Comet ISON, photographed with a 3-inch (80mm) telescope this morning
Sept. 28 shows a circular green coma and head. A short dust tail
points to the northwest. Credit: Michael Jaeger
As NASA and the European Space Agency prepare  their remote photojournalists – Mars Express, Mars Reconnaissance Orbiter and the Curiosity and Opportunity rovers – to capture photos of Comet ISON’s flyby of Mars early next week, amateur astronomers continue to monitor and photograph the comet from backyard observatories across the blue Earth. Several recent color photos show ISON’s bright head or nucleus at the center of  a puffy, green coma. Green’s a good omen – a sign the comet’s getting more active as it enters the realm of the inner solar system and sun’s embrace.
The following report from Universe Today, confirms this:

...

Another great photo of the “greening” of Comet ISON taken on Sept. 24
with a 17-inch (43-cm) telescope. Click to enlarge. Credit: Damian Peach
Sunlight beating down on the comet’s nucleus (core) vaporizes dust-impregnated ice to form a cloud or coma, a temporary atmosphere of water vapor, dust, carbon dioxide, ammonia and other gases. Once liberated , the tenuous haze of comet stuff rapidly expands into a huge spherical cloud centered on the nucleus. – Universe Today.

On September 29, McCanney wrote on his website:

Comet ISON recently turned GREEN showing it is connecting electrically with Mars as I predicted. This started on the 24th of September. Standard science claims this is due to UV light from the Sun, which is more like fairy tale. They never explain such dichotomies (they do not have to since in the controlled press no one else gets to insert even a comment).  I predicted this brightening as the comet connects electrically with Mars, heading for a close bypass on the 1st of October

...

Comet PanSTARRS in Ursa Minor. Credit: John Bozeman

The Comet PanSTARRS as seen from The Three Rivers Foundation Comanche Springs Astronomy Campus, Texas, on June 5, 2013. PanSTARRS, a comet from the Oort Cloud, became visible in March 2013.



Did Ison Cause Volcanic Eruptions on Mars?

namaste

- : )
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« Last Edit: Oct 7th, 2013 at 12:00pm by it_is_the_light »  

ॐ May Much LOVE and CHRISTS LIGHT be upon and within us all.... namasté ▲ - : )  ╰დ╮ॐ╭დ╯
it_is_the_light it_is_the_light Christ+Light Christ+Light  
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