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Michael
On Jun 5, 2009, at 1:29 PM, "Galactic Stone & Ironworks" <[email protected]
> 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 <[email protected]> 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 <[email protected]> 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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