Date: Mon, 29 Oct 2001 15:36:32 -0500
Subject: DPS Mailing #01-44: Decadal survey, astrobiology workshop

Greetings DPS colleagues -

       +------------------CONTENTS:-----------------------------+
       |1) SOLAR SYSTEM EXPLORATION SURVEY, LARGE SATELLITES    |
       |2) MARS ATMOSPHERIC CHEMISTRY & ASTROBIOLOGY WORKSHOP   |
       |3) JOB ANNOUNCEMENT                                     |
       +--------------------------------------------------------+

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SOLAR SYSTEM EXPLORATION SURVEY UPDATE, LARGE SATELLITES 

The NRC Large Satellites Panel of the Solar System Exploration Survey 
solicits your input with regard to science themes and key questions in 
our draft outline. It is available in word95, html, and text formats at:

http://pirlwww.lpl.arizona.edu/~mcewen/LSAT/  

The original format is word95, so the text and html versions contain
some formatting errors.  

We have not yet attempted to prioritize future missions or other 
initiatives, but further comments about these important issues continue 
to be welcome. 

The tasks of the Large Satellites panel are: to conduct a broad survey
of the current state of knowledge about the large outer planet
satellites; to inventory the top-level scientific questions that should
provide the focus for large satellite exploration in the coming decade
and beyond; and to produce a prioritized list of the most promising
avenues for flight investigations and supporting ground-based
activities.

The NRC Large Satellites Panel consists of Alfred McEwen (Chair), Bob 
Pappalardo (Vice-Chair), Caitlin Griffith, Torrence Johnson, Krishan 
Khurana, and Bill Moore. For the purpose of this survey, a "large" 
satellite is defined as those satellites of Jupiter, Saturn, Uranus, 
and Neptune >300 km diameter. The smaller (generally irregular) 
satellites of these planets and Pluto/Charon are covered by the 
Primitive Bodies panel; Triton will be considered by both the Large 
Satellites and the Primitive Bodies panels. 

Please send your comments to: 

        mcewen@jupiter.lpl.arizona.edu
        or fax to 520-621-9628

I will forward all correspondence to the other panel members.  

We also encourage you to post your comments at the DPS website:

http://www.aas.org/decadal/cgi-bin/bbs/bbs_forum.cgi?forum=largesat

Cheers,
Alfred McEwen

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MARS ATMOSPHERIC CHEMISTRY & ASTROBIOLOGY WORKSHOP
California Institute of Technology, Pasadena, California, USA
December 17-19, 2001

The California Institute of Technology and the Jet Propulsion 
Laboratory are hosting a multi-disciplinary workshop to identify what 
observations of the composition of the Mars atmosphere would allow 
the detection of extant subsurface life, remnants of life, or 
signatures of past climate supportive of life. A key question is how 
to distinguish between actual biosignatures and atmospheric 
composition resulting from volcanic emissions and other 
non-biological natural processes that might be occurring on Mars.

Members of the scientific community are invited to participate in 
plenary session discussions and present poster talks. The proceedings 
of the workshop will be published.

Further information may be found at the workshop website
             (http://www.gps.caltech.edu/meetings/MACA).
Registration will be through this website.

The NASA Astrobiology Institute will entertain requests for travel 
support. See the workshop website for additional details.

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JOB ANNOUNCEMENT

Planetary Volcanology & Astrobiology tenure track faculty positions, 
Dept. of Geology & Planetary Science, Univ. of Pittsburgh.
http://www.geology.pitt.edu/jobs/job-ad01.html

See also AAS Job Register: http://www.aas.org/JobRegister/aasjobs.html

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                       Melissa McGrath, on behalf of the DPS Committee
              (submissions to Al Harris: awharris@lithos.jpl.nasa.gov)