[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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