[meteorite-list] Panspermia, Reverse Panspermia & Life In Space

[Michael Farmer]

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Michael


On Jun 5, 2009, at 1:29 PM, "Galactic Stone & Ironworks" <meteoritemike at gmail.com 
 > wrote:

> Thanks to Eric for starting this discussion.  It's been great reading
> - pass the popcorn. :)
>
> One thought from the peanut gallery - what if we (or some other
> species) accidentally "terraformed" a world by contaminating it with
> microbes?  Imagine if a world like Mars got infected (so to speak)
> with a CO2-eating microbe that releases oxygen?  Here the line between
> panspermia, contamination, and terraforming gets a little blurry.
> What if an intergalactic RV mistook our world for a dumping station
> and left us with the gift that keeps on giving?   We may end up doing
> the same - intentionally or accidentally.
>
> Best regards,
>
> MikeG
>
>
>
> On 6/5/09, Mr EMan <mstreman53 at yahoo.com> wrote:
>>
>> Totally agree with Mark's quote below about Panspermia. As to reverse
>> contamination-- studies so far suggest launching and landing  
>> temperatures
>> are sufficiently low that neither process sterilizes the cargo:  
>> Mars to
>> Earth or Earth to Mars transport.
>>
>> Elton
>> --- On Fri, 6/5/09, Mark Ford <mark.ford at ssl.gb.com> wrote:
>>
>>
>> << To be honest this whole Panspermia concept, has become a
>> bit of a religion in some circles,  how is it more likely that
>> Earth was seeded by alien life than that that the Earth started  
>> life by
>> itself? Earth is perfect for life, all the ingredients are or where
>> present, we haven't seen anywhere else in the universe like earth  
>> for long
>> enough, so it seems sensible to assume it all started right here...
>> in a galaxy not so very far away..
>>
>> Mark>>
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>
>
> -- 
> .........................................................
> Michael Gilmer (Louisiana, USA)
> Member of the Meteoritical Society.
> Member of the Bayou Region Stargazers Network.
> Websites - http://www.galactic-stone.com and http://www.glassthrower.com
> ..........................................................
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