[meteorite-list] ALH 84001

From: Becky and Kirk <bandk_at_meteoritecentral.com>
Date: Sun, 6 Mar 2011 22:21:34 -0600
Message-ID: <E3F8875546FC4B68B6ED58415ECBB240_at_owner55652f88b>

Shawn makes some very good points indeed!

Kirk......:-)
----- Original Message -----
From: "Shawn Alan" <photophlow at yahoo.com>
To: <epgrondine at yahoo.com>
Cc: <meteorite-list at meteoritecentral.com>
Sent: Sunday, March 06, 2011 9:50 PM
Subject: Re: [meteorite-list] ALH 84001


> Hello Listers,
>
> There is a great documentary by National Geographic / Naked Science called
> Alien Falls which the bulk of the episode is about the Grimsby meteorite
> fall but there is a five minute segment concerning the ALH84001 meteorite.
> David McKay, astrobiologist from NASA Johnson Space Center and his team of
> scientist go into great detail in explain how magnetites found in the
> ALH84001 meteorite could possibly be fossils from bacteria from Mars.
>
> In the video, McKay explains this process by stating that his scientific
> team found within the ALH84001 meteorite golden spherical shaped disks
> called carbonates, which could indicate that these carbonates came from an
> environment where there was water or is water.
>
> Within the carbonates the scientists found magnetite chains that resemble
> magnetite chains found in magnetotactic bacteria on Earth. McKay in the
> documentary believes that?s these magnetite chains could be traces of
> bacteria fossils from Mars. On Earth when a magnetotactic bacteria decay,
> what is left is a magnetite chain, which could suggest that these chains
> found in the carbonates from ALH84001 meteorite could be an indication
> that they came from bacteria that formed in or around water.
>
> With the proof that there was water on Mars and that there might still be
> water on Mars one could conclude that at one time, there might have been
> life on that red, desolate, planet we call Mars which has been around
> since the birth of the solar system, 4.6 billion years ago. That is a lot
> of time for the life and death of any species or bacteria to form, live,
> die, and decay.
>
> I wonder how long it would take the Earth to rot away to its true natural
> state if the atmosphere and magnetic field was gone? One million years and
> all signs of civilization could be erased and only mother Earths raw
> natural state to show for? Something to think about when considering if
> life does or did existed elsewhere. Earth 4.6 billion years?. Universe
> about 14 billion years and counting.
>
>
>
>
> Shawn Alan
> IMCA 1633
> eBaystore
> http://shop.ebay.com/photophlow/m.html
>
>
>
>
> [meteorite-list] ALH 84001
> E.P. Grondine epgrondine at yahoo.com
> Sun Mar 6 16:05:33 EST 2011
>
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> --------------------------------------------------------------------------------
> Hi all -
>
> Some of you may remember several years back my several part tale of my
> dramatic involvement (and lack therof) in the breaking of the ALH84001
> fossils story.
>
> For what its worth, I think that those strcutures are fossils, based on my
> conversation at that time with Dr. MacKay's SEM specialist. He found that
> the PHAs were bound by the structures' walls, and the later finds of
> magnetite grains in the structure appear to me as a below surface sensory
> mechanism.
>
> I tend to go with Marc on this news, and with his analysis of how the
> error occured.
>
> E.P. Grondine
> Man and Impact in the Americas
>
>
>
>
> --------------------------------------------------------------------------------
>
>
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Received on Sun 06 Mar 2011 11:21:34 PM PST