[ExI] Alien Planet's Missing Methane Stumps Scientists
dan_ust at yahoo.com
Sat Sep 18 21:23:44 UTC 2010
Actually, my understanding is no one knows or has a rigorous theory of how life
first originated -- even if it originated on Earth or wasn't a importation.
Regarding observational error, I'm not so sure. I don't know, for instance, if
there's enough in the observations to rule out there being no methane. I'd give
them the benefit of the doubt -- which is why I meantioned that the model used
is likely off and only put the observation error comment as an afterthought.
----- Original Message ----
From: spike <spike66 at att.net>
To: swestrup at gmail.com; ExI chat list <extropy-chat at lists.extropy.org>
Sent: Sat, September 18, 2010 4:15:11 PM
Subject: Re: [ExI] Alien Planet's Missing Methane Stumps Scientists
> From: Stirling Westrup [mailto:swestrup at gmail.com]
> Subject: Re: [ExI] Alien Planet's Missing Methane Stumps Scientists
> On Sat, Sep 18, 2010 at 12:46 PM, Dan <dan_ust at yahoo.com> wrote:
> > Okay. Totally off the wall speculation: ET harvested the methane and
> > that's why it's missing. :)
> > Of course, my guess is the cause is that the model used to predict
> > abundance is wrong. Or there's some observational error.
> I vote for alien chemistry. What we don't know about
> chemistry under non-terrestrial conditions is huge... Stirling Westrup
Ja, I mostly dismiss the notion of observational error, but agree that we
don't know very well all the chemistry when the surface is over 500 degrees.
I am intrigued with the notion that some extremophile might have evolved
there and devoured the methane. Recall that is pretty much what happened on
this planet: life originally evolved here in a reducing environment, rich in
methane and other organics. The early plants and beasts devoured much of
that methane and the other *anes. Then that crowd were later poisoned by
oxygen. We are the freaks that escaped that poisonng event.
Wouldn't it be wicked cool if that's what is going on?
More information about the extropy-chat