RE: [meteorite-list] sterilizing that probe...!

2004-03-02 Thread mark ford

Hi


Ethylene Oxide was rejected as a viable sterilization method on the
Viking lander missions, so am I right in assuming they (NASA) have
changed that idea?

(It's just that they found viable microorganisms after treating with
Ethylene Oxide...)


Mark Ford



-Original Message-
From: stan . [mailto:[EMAIL PROTECTED] 
Sent: 02 March 2004 08:05
To: [EMAIL PROTECTED]
Subject: Re: [meteorite-list] sterilizing that probe...!


Have all other groups sterilized previous martian landers? if not then
the 
planet has already been contaminated.

Whasnt it LDEF that came back home and much to scientists surprise 
terrestrial organisms that werent removed from the structure (ie they
were 
NOT intended payloads) prior to launch had survived floating around
exposed 
space for quite some time, to be brough back home with the staellite
when it 
was retrived

>From: "Rosemary Hackney" <[EMAIL PROTECTED]>
>To: "Dave Harris" <[EMAIL PROTECTED]>,"metlist" 
><[EMAIL PROTECTED]>
>Subject: Re: [meteorite-list] sterilizing that probe...!
>Date: Tue, 2 Mar 2004 01:16:14 -0600
>
>Ethylene oxide.
>
>Rosie
>- Original Message -
>From: "Dave Harris" <[EMAIL PROTECTED]>
>To: "metlist" <[EMAIL PROTECTED]>
>Sent: Tuesday, March 02, 2004 12:51 AM
>Subject: [meteorite-list] sterilizing that probe...!
>
>
> > Hi,
> > Somewhat off-topic I know but... I have been trying to figure out
how 
>one
> > can sterilize these various Mars probes, knowing how tenacious life
can
>seem
> > to be.
> > Surely NASA cannot be seen to contaminate the (potential) Martian
>biosphere
> >  and there is a lot of hardware that needs to be quite literally
100%
> > sterile - otherwise, how would one know whether or not the
signatures of
> > life that may be found were not terrestrial in origin?
> > How on Earth does one sterilize Mylar, for example?
> >
> > Unknowledgebly yours
> >
> >
> >
> > dave
> >
> > IMCA #0092
> >
> > __
> > Meteorite-list mailing list
> > [EMAIL PROTECTED]
> > http://www.pairlist.net/mailman/listinfo/meteorite-list
> >
>
>
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Re: [meteorite-list] sterilizing that probe...!

2004-03-02 Thread stan .
Have all other groups sterilized previous martian landers? if not then the 
planet has already been contaminated.

Whasnt it LDEF that came back home and much to scientists surprise 
terrestrial organisms that werent removed from the structure (ie they were 
NOT intended payloads) prior to launch had survived floating around exposed 
space for quite some time, to be brough back home with the staellite when it 
was retrived

From: "Rosemary Hackney" <[EMAIL PROTECTED]>
To: "Dave Harris" <[EMAIL PROTECTED]>,"metlist" 
<[EMAIL PROTECTED]>
Subject: Re: [meteorite-list] sterilizing that probe...!
Date: Tue, 2 Mar 2004 01:16:14 -0600

Ethylene oxide.

Rosie
- Original Message -
From: "Dave Harris" <[EMAIL PROTECTED]>
To: "metlist" <[EMAIL PROTECTED]>
Sent: Tuesday, March 02, 2004 12:51 AM
Subject: [meteorite-list] sterilizing that probe...!
> Hi,
> Somewhat off-topic I know but... I have been trying to figure out how 
one
> can sterilize these various Mars probes, knowing how tenacious life can
seem
> to be.
> Surely NASA cannot be seen to contaminate the (potential) Martian
biosphere
>  and there is a lot of hardware that needs to be quite literally 100%
> sterile - otherwise, how would one know whether or not the signatures of
> life that may be found were not terrestrial in origin?
> How on Earth does one sterilize Mylar, for example?
>
> Unknowledgebly yours
>
>
>
> dave
>
> IMCA #0092
>
> __
> Meteorite-list mailing list
> [EMAIL PROTECTED]
> http://www.pairlist.net/mailman/listinfo/meteorite-list
>

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Re: [meteorite-list] sterilizing that probe...!

2004-03-01 Thread Rosemary Hackney
Ethylene oxide.

Rosie
- Original Message - 
From: "Dave Harris" <[EMAIL PROTECTED]>
To: "metlist" <[EMAIL PROTECTED]>
Sent: Tuesday, March 02, 2004 12:51 AM
Subject: [meteorite-list] sterilizing that probe...!


> Hi,
> Somewhat off-topic I know but... I have been trying to figure out how one
> can sterilize these various Mars probes, knowing how tenacious life can
seem
> to be.
> Surely NASA cannot be seen to contaminate the (potential) Martian
biosphere
>  and there is a lot of hardware that needs to be quite literally 100%
> sterile - otherwise, how would one know whether or not the signatures of
> life that may be found were not terrestrial in origin?
> How on Earth does one sterilize Mylar, for example?
>
> Unknowledgebly yours
>
>
>
> dave
>
> IMCA #0092
>
> __
> Meteorite-list mailing list
> [EMAIL PROTECTED]
> http://www.pairlist.net/mailman/listinfo/meteorite-list
>


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[meteorite-list] sterilizing that probe...!

2004-03-01 Thread Dave Harris
Hi,
Somewhat off-topic I know but... I have been trying to figure out how one
can sterilize these various Mars probes, knowing how tenacious life can seem
to be.
Surely NASA cannot be seen to contaminate the (potential) Martian  biosphere
 and there is a lot of hardware that needs to be quite literally 100%
sterile - otherwise, how would one know whether or not the signatures of
life that may be found were not terrestrial in origin?
How on Earth does one sterilize Mylar, for example? 

Unknowledgebly yours



dave

IMCA #0092

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