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March 28, 2008

New Classroom Materials from the NAI: Exploring Deep Subsurface Life

Created by NAI's IPTAI Team the Exploring Deep Subsurface Life Workbook and DVD teaching materials highlight research sites at Harmony Gold Mine in South Africa, and Lupin Gold Mine and High Lake Mine in Nunavut Territory, Canada. The workbook's imagery invites the audience into the mine sites, and the lessons correspond to the astrobiology research carried out in the deep subsurface.

The video and animation materials support and compliment the lessons in the workbook and introduce the scientists. The materials can be accessed at: http://www.indiana.edu/~deeplife/epo_products.html [Source: NAI newsletter]

New NASA Astrobiology Program Website Launched

The new integrated website for NASA's Astrobiology Program was launched on Friday, March 21: http://astrobiology.nasa.gov/. The link to the NAI website remains the same: http://nai.nasa.gov and its contents have been redesigned and integrated with the program site. NAI Central staff worked with Astrobiology Program Communications Coordinator, Linda Billings, to design and implement the new website. We're pleased that NAI Central has been able to make this contribution to the Astrobiology Program and the community. We invite you to take a look at the new site and send us your comments, using the page feedback boxes online. [Source NAI newsletter]

NASA SSB Report: Assessment of the NASA Astrobiology Institute

Full report

Executive Summary

Astrobiology is a scientific discipline devoted to the study of life in the universe--its origins, evolution, distribution, and future. It brings together the physical and biological sciences to address some of the most fundamental questions of the natural world: How do living systems emerge? How do habitable worlds form and how do they evolve? Does life exist on worlds other than Earth?

As an endeavor of tremendous breadth and depth, astrobiology requires interdisciplinary investigation in order to be fully appreciated and examined. As part of a concerted effort to undertake such a challenge, the NASA Astrobiology Institute (NAI) was established in 1998 as an innovative way to develop the field of astrobiology and provide a scientific framework for flight missions. Now that the NAI has been in existence for almost a decade, the time is ripe to assess its achievements.

At the request of NASA's Associate Administrator for the Science Mission Directorate (SMD), the Committee on the Review of the NASA Astrobiology Institute undertook the assignment to determine the progress made by the NAI in developing the field of astrobiology (Appendix A). It must be emphasized that the purpose of this study was not to undertake a review of the scientific accomplishments of NASA's Astrobiology program, in general, or of the NAI, in particular. Rather, the objective of the study is to evaluate the success of the NAI in achieving its stated goals of:

  1. Conducting, supporting, and catalyzing collaborative interdisciplinary research;
  2. Training the next generation of astrobiology researchers;
  3. Providing scientific and technical leadership on astrobiology investigations for current and future space missions;
  4. Exploring new approaches, using modern information technology, to conduct interdisciplinary and collaborative research among widely distributed investigators; and
  5. Supporting outreach by providing scientific content for use in K-12 education programs, teaching undergraduate classes, and communicating directly with the public.

Astrobiology Science News 28 March 2008

March 27, 2008

NAI Releases Request for Information

The NAI has released a Request for Information entitled "Collaborative Technology Tools and Methods For Distributed Interdisciplinary Science." For more information, see: http://astrobiology.nasa.gov/articles/nai-request-for-information/ [Source: NAI newsletter]

RFI from NRC on Science Opportunities Enabled by NASA's Constellation System

The Space Studies Board and the Aeronautics and Space Engineering Board of the National Research Council (NRC) have begun a study of science opportunities enabled by NASA's Constellation system of launch vehicles and spacecraft. The Committee on Science Opportunities Enabled by NASA's Constellation System will first analyze a set of "Vision Mission" concepts provided by NASA.

The results of this analysis will be included in an interim report to be completed by the end of April 2008. The mission concepts that the committee is analyzing for its interim report are listed on the committee's website: http://www8.nationalacademies.org/cp/projectview.aspx?key=48895

In order to obtain the greatest possible input of ideas from the community about potential mission concepts addressing space science research, we are soliciting input from the broad community concerning ideas for missions or programs that are uniquely enabled by NASA's Constellation system. The capabilities of the Constellation system, some or all of which should be used in this input, are also available at the committee's website. These missions or programs can include, but are not limited to: Earth sciences, solar system exploration, heliophysics, astronomy and astrophysics.

For further information on this RFI, see http://www8.nationalacademies.org/cp/projectview.aspx?key=48895.
Deadline is May 5, 2008. [Source: NAI newsletter]

Draft Stand Alone Missions of Opportunity: Notice Announcement of Opportunity

The National Aeronautics and Space Administration (NASA) Stand Alone Missions of Opportunity Notice (SALMON), is intended to provide regular opportunities for science and technology investigations on space flight missions that advance the high priority science, technology, and exploration objectives of NASA's four Mission Directorates.

This five year Omnibus Announcement of Opportunity (AO) will incorporate regular Program Element Appendices (PEAs) for general Mission of Opportunity (MO) proposal opportunities as well as focused proposal opportunities for specific flight opportunities. The five PEAs included in this DRAFT solicitation are: Lunar and Planetary Science Partner Missions of Opportunity, Lunar and Planetary Science U.S. Participating Investigators, Small Complete Missions of Opportunity in Astrobiology and Fundamental Space Biology, Earth Science U.S. Participating Investigators, and Astrophysics U.S. Participating Investigators. Participation in this AO will be open to all categories of organizations.

NASA welcomes critical review and comment of this DRAFT, which will be available from March 14, 2008, through April 4, 2008, at http://nspires.nasaprs.com/.

Send comments to Dr. Carlos Liceaga, Science Mission Directorate, NASA Headquarters, Washington, DC 20546-0001. E-mail: Carlos.A.Liceaga@nasa.gov. Comments are preferred in writing and may be sent by E-mail; the character string "SALMON DRAFT AO" (without quotes) should be included in the subject line of all transmissions. The identity of those submitting comments will be held in confidence.

Answers to frequently asked questions about this DRAFT will be made available on the SALMON Acquisition Additional Information web page: http://salmon.larc.nasa.gov/index.html. [Source NAI newsletter]

Astrobiology Science News 27 March 2008

Astrobiology Science News 26 March 2008

March 26, 2008

Upcoming NAI Focus Group Meetings at AbSciCon April 14-17, 2008

  • NAI Virus Focus Group, Monday, April 14, 1 -5:30PM, Room 207
  • NAI Origin of Life Focus Group, Wednesday, April 16, Lunch Hour, Room 206
  • NAI Early Earth Focus Group, Wednesday, April 16, Lunch Hour, Great America #1
  • NAI Mars Focus Group, Wednesday, April 16, Lunch Hour, Great America #2
  • NAI Planetary System Formation, Wednesday, April 16, Lunch Hour, Great America #3

Conference Center Floor Plan http://www.santaclara.org/conventioncenter/floorplan.cfm [Source: NAI newsletter]

RFI for Lunar Atmosphere and Dust Environment Explorer (LADEE)

The Government is seeking information regarding existing instruments (such as flight spares and engineering models) that could be quickly flight qualified, accommodated, and flown on the Lunar Atmosphere and Dust Environment Explorer (LADEE), scheduled for a 2010-2011 launch. The Government is also interested in potential "build to print" possibilities from existing flight instruments, in the event that there are no flight spares available.

In particular, the Government is seeking capable neutral mass spectrometers and sensitive dust detectors for this opportunity. However other available lightweight instrument types that could provide alternative data sets to address the composition and structure of the tenuous lunar atmosphere, or the presence and distribution of dust above the lunar surface, will also be considered.

In accordance with FAR 15.201 (e), the information requested is for planning purposes only and is not intended to bind the Government. This information will be used to inform NASA's program planning, including consideration of whether and how to solicit instruments for the LADEE mission.

Background

LADEE is a strategic mission that will address science goals 8a and 8b from the 2007 National Research Council Study "The Scientific Context for Exploration of the Moon" to the extent that is possible within the limitations imposed by mass, cost, and duration of the proposed mission.

The objectives of the LADEE mission are:

1. Determine the global density, composition, and time variability of the fragile lunar atmosphere before it is perturbed by further human activity;

2. Determine if the Apollo astronaut sightings of diffuse emission at 10s of km above the surface were Na glow or dust and;

3. Document the dust impactor environment (size-frequency) to help guide design engineering for the outpost and also future robotic missions.

NASA expects to place this orbiter into a low orbit (tentatively about 50 km) for at least four months (one month of check-out, and three months of data collection). The mission will be small; it is expected that the total available mass for all two or even three payload instruments will be approximately 20 kg. The available payload power is approximately 60W, but can peak to 100W depending on spacecraft orientation and thermal constraints. The payload data rate is approximately 10Kbps with our baseline S-band communications system. Detailed trade studies of orbital elements versus payload mass and mission length are underway now. The orbiter payload is expected to include two instruments: a dust detector and a neutral mass spectrometer. However, there may be sufficient mass to include an additional atmospheric instrument. The mass devoted to science payload (instruments) is strictly limited, and will not be allowed to grow. The tight schedule (in order to reach launch in 2010-2011) and limited budget precludes extensive instrument development for this mission.

The complete RFI including background, requested information, and instructions for responding may be found at http://nspires.nasaprs.com/ (select "Solicitations" then "Open Solicitations" then "Request for Information (NNH08ZDA006L): Instruments for LADEE Lunar Mission").

Responses to this RFI must be submitted no later than April 18, 2008. [Source: NAI newsletter]

March 25, 2008

Request for Information (RFI) New Science Investigations using Existing NASA Spacecraft

Science Mission Directorate, NASA
Solicitation Number: NNH08ZDA005L
Release Date: March 14, 2008
Response Date: April 9, 2008

NASA is soliciting ideas and suggestions from the science and research communities on potential new uses of existing NASA science spacecraft that support NASA's science goals.

NASA's Science Mission Directorate (SMD) currently sponsors approximately 85 flight missions, involving over 90 spacecraft, divided between missions in development and missions in operations. One of SMD's programmatic objectives is to maximize the science return for the Nation within the available budget. This Request for Information (RFI) solicits input from the broad space science community that would contribute to NASA's study of possible new uses for current NASA spacecraft beyond their current missions. Responses to this RFI (NNH08ZDA005L) will be used to inform NASA's program planning.

The complete RFI including background, requested information, and instructions for responding may be found at http://nspires.nasaprs.com/ (select "Solicitations" then "Open Solicitations" then "Request for Information (NNH08ZDA005L): New Science Investigations using Existing NASA Spacecraft").

For further information on this RFI, please contact Dr. Paul Hertz, Science Mission Directorate, NASA, Washington, DC 20546; email at paul.hertz@nasa.gov.
[Source: NAI newsletter]

Meteorites a Rich Source for Primordial Soup

Scientists from NAI's Carnegie Institution of Washington Team have a new paper in Meteoritics and Planetary Science detailing their discovery of amino acids in two meteorites at concentrations ten times higher than levels previously measured in other similar meteorites. The result suggests that the early solar system was far richer in the organic building blocks of life than scientists had thought, and that fallout from space may have spiked Earth's primordial broth. [Source: NAI newsletter]

The 15th Cambridge Workshop on Cool Stars, Stellar Systems and the Sun

July 21-25, 2008, St Andrews, Scotland

The Cool Stars meetings have a long tradition of presenting cutting edge science in the fields of cool stars, exoplanets and solar physics. Topics of interest at Cool Stars 15 will include seismology, surface and atmospheric dynamics, angular momentum evolution, dust formation, coronae, magnetospheres and winds. The conference aims to gather scientists working in all these fields in order to stimulate cross-disciplinary exchange. The NAI is sponsoring 9 speakers at this meeting.

For a preliminary program and registration see: http://star-www.st-and.ac.uk/coolstars15/

The deadline for contributed talks is May 2, 2008. [Source: NAI newsletter]

Astrobiology Science News 25 March 2008

March 24, 2008

NAI Director's Discretionary Fund 2008

The NAI announces that it is now accepting proposals for the 2008 Director's Discretionary Fund. Proposals will be accepted through June 1, 2008 and selections will be made by July 1, 2008.

For more information: http://nai.nasa.gov/ddf_2008/

NASA Planetary Science Summer School

NASA is accepting applications from science and engineering post-docs, recent PhDs, and doctoral students for its 20th Annual Planetary Science Summer School, which will hold two separate sessions this summer (21-25 July and 4-8 August) at the Jet Propulsion Laboratory in Pasadena, Calif. During the program, student teams will carry out the equivalent of an early mission concept study, prepare a proposal authorization review presentation, present it to a review board, and receive feedback. At the end of the week, students will have a clearer understanding of the life cycle of a space mission; relationships between mission design, cost, and schedule; and the tradeoffs necessary to stay within cost and schedule while preserving the quality of science.

Applications are due 1 May 2008. Partial financial support is available for a limited number of individuals. Further information is available at http://pscischool.jpl.nasa.gov.

Position Available: Post-Doctoral Associate in Mars Science, University of Colorado

The Laboratory for Atmospheric and Space Physics invites applications for a post-doctoral researcher in the area of Mars geology, starting summer 2008. Researchers in the disciplines of geology/geomorphology, geochemistry, geophysics, hydrology, or astrobiology that study the history of water on the Red Planet are encouraged to apply.

Potential applicants are welcome to contact Brian Hynek

(hynek@lasp.colorado.edu) for additional information and to discuss research interests. Send a curriculum vitae, up to 3 articles that are published or in submission, a brief research proposal (up to 2 pages), and the names and contact information of three references.

Applications for this position will be accepted until the position is filled. Submit application materials via e-mail to: HRADS@lasp.colorado.edu or mail to LASP, University of Colorado at Boulder, 392 UCB, Boulder, CO 80309-0392. In your correspondence, please include the code PDAM0208.

All final applicants being considered for employment are subject to a background investigation including a criminal history check and if necessary, motor vehicle histories check. The University of Colorado at Boulder is committed to diversity and equality in education and employment.

NAI Director's Seminar: "Earth's Low Temperature Life: An Analog for Mars and Europa"

Presenters: Jody Deming and James Staley (University of Washington)

Date/Time: Monday, March 31, 2008 11:00 AM Pacific

For more information and participation instructions: http://nai.arc.nasa.gov/seminars/seminar_detail.cfm?ID=119

Request for ASGSB awards nominations

The Awards Committee is soliciting nominations for the awards listed below from the membership at large. Please take a moment to review the categories, think about a deserving candidate, and send your nomination!

1. Thora W. Halstead Young Investigator Award: This award was established to honor a young scientist (usually under 40) who exemplifies Thora's drive and enthusiasm for science, and who has made significant contributions to the field of space biology.

2. Orr Reynolds Distinguished Service Award: This award is made to an individual for distinguished service to the Society "above and beyond the call of duty."

3. Founder's Award: This award is the highest honor given by the Society. It is made to a member of the Society for distinguished scientific contributions to and leadership in the field of gravitational and space biology.

For more information about the awards-including a list of past recipients, please see: http://asgsb.org/awards.html.

Nominations should be accompanied by the name and professional address of the candidate and a short Curriculum Vitae, along with a paragraph outlining why the candidate is particularly deserving of the award. Please submit nominations by e-mail to Dr. John Z. Kiss, Chair, Awards Committee, kissjz@muohio.edu. The deadline for receiving nominations is April 25, 2008.

Astrobiology Science News 24 March 2008

March 23, 2008

The NAI Selects Postdoctoral Fellows

The NAI is very pleased to announce the selection of three NAI Fellows, who will receive awards through the NASA Postdoctoral Program.

The three Fellows are:

Daiki Horikawa, Advisor: Lynn Rothschild, NAI's SETI Institute Team, Tolerance of tardigrades to extremes: Implications for the existence of multicellular organisms in extraterrestrial environments.

Olivia Mason, Advisor: Jim Cowen, NAI's University of Hawaii Team, Phylogenetic and functional diversity of microorganisms associated with crustal fluids

Steven Mielke, Advisor Nancy Kiang, NAI's VPL - University of Washington Team, Molecular-Environmental Limits of Terrestrial Photosynthesis: Implications for Extrasolar Biosignatures

We welcome the new Fellows to the NAI.

The deadline for the next NAI opportunity for NPP Fellowships is July 1, 2008. For additional information about the program see http://nasa.orau.org/postdoc .

March 22, 2008

NSF Funding Opportunity: CubeSat-based Science Missions for Space Weather and Atmospheric Research

Full Proposal Deadline Date: May 28, 2008

Lack of essential observations from space is currently a major limiting factor in space weather research. Recent advances in sensor and spacecraft technolo

The overarching goal of the program is to support the development, construction, launch, operation, and data analysis of small satellite science missions to advance space weather and atmospheric research. Equally important, it will provide essential opportunities to train the next generation of experimental space scientists and aerospace engineers.

To facilitate launch of the satellites as secondary payloads on existing missions, the focus of the program is on CubeSat-based satellites. Launch of the satellites will be through the standardized CubeSat deployment system, the Poly Picosatellite Orbital Deployer (P-POD). Launch of the P-PODS will be as auxiliary payloads on DOD, NASA, or commercial launches. This will be arranged directly by NSF and is not part of this solicitation. Beginning in 2009, NSF expects to launch two to four P-PODs every year, accommodating at least as many (three to six) individual satellite missions. This solicitation covers proposals for science missions to include satellite development, construction, testing and operation as well as data distribution and scientific analysis.

For more information: http://www.nsf.gov/funding/pgm_summ.jsp?pims_id=503172

ASM's MicrobeWorld Radio Program

This could be your 90 seconds of fame! NAI is forming a partnership with the American Society of Microbiology's MicrobeWorld radio program, http://www.microbeworld.org, and we're looking for NAI scientists to be subjects of these short segments. They are broadcast on numerous radio stations across the country in the style of NPR's "Earth and Sky" series, and are also are available as podcasts (downloads are in the hundreds of thousands per year). If you're interested, please contact NAI's E/PO Coordinator, Daniella Scalice, daniella.m.scalice@nasa.gov.

March 21, 2008

Astrobiology Science News 21 March 2008

March 20, 2008

Astrobiology Science News 20 March 2008

March 19, 2008

Astrobiology Science News 19 March 2008

March 18, 2008

NASA ROSES Amendment - New Scope to Origins of Solar Systems Includes Search for Intelligent Life

This amendment explicitly includes the search for extrasolar planets that may harbor intelligent life within the scope of the Origins of Solar Systems program.

The first paragraph of Section 1 is amended to state that, "These investigations may involve ... the detection and characterization of other planetary systems including those that may harbor intelligent life." The second paragraph of Section 1 is amended to include the following as one of the categories that Origins of Solar Systems proposals should fall into: "Investigations to identify and characterize signal characteristics and/or observable properties of extrasolar planets which may distinguish planetary systems with intelligent life."

On or about February 29, 2008, this Amendment to the NASA Research Announcement "Research Opportunities in Space and Earth Sciences (ROSES) 2008" (NNH08ZDA001N) will be posted on the NASA research opportunity homepage at http://nspires.nasaprs.com/ (select "Solicitations" then "Open Solicitations" then "NNH08ZDA001N").

Further information about this program element is available from Dr. Zlatan Tsvetanov, Astrophysics Division, Science Mission Directorate, NASA, Washington, DC 20546; Telephone: (202) 358-0810; E-mail: Zlatan.Tsvetanov@nasa.gov.

March 14, 2008

NASA RFI - Scientist Participant Suborbital Science Pilot Program - Flight Research

The National Aeronautics and Space Administration (NASA) recognizes the advancement of the commercial suborbital spaceflight industry and requests information on potential human-tended flight experiments enabled by this capability. NASA's Science Mission Directorate (SMD) is in the formulation phase of a possible new program to fly government-sponsored payloads and researchers on commercial suborbital systems with the intent of advancing SMD's goals and objectives. Responses to this RFI (NNH08ZDA004L) will be used to inform NASA's program planning.

Background:

Suborbital missions have provided an important arena for astronomical, terrestrial, and other areas of space research for over 60 years. They offer the opportunity to make astronomical and Earth observations at wavelengths and special observing geometries not accessible from the ground; they also offer the opportunity to study microgravity and other observations related to the fundamental physics of the space and Earth sciences. Routine accomplishments range, for example, from in-situ sampling of atmospheric regions that neither spacecraft nor aircraft can reach, to examining physical phenomena (e.g., relevant to planetary accretion) in microgravity conditions that are not attainable on the ground or available for such long periods in zero-g aircraft, to testing science instruments before committing to orbital or interplanetary flight.

The emergence of human suborbital flight for commercial purposes now offers a natural and timely opportunity to open a new research venue to the scientific community.

In this RFI, NASA is soliciting ideas and comments from the science and research communities on potential human-tended suborbital investigations that support NASA's science goals. With input from responses to this RFI, NASA intends to (i) consider acquiring commercial suborbital seats and flights for NASA-funded researchers to conduct human-tended suborbital investigations and (ii) consider a NASA Research Announcement (e.g., via an amendment to Research Opportunities in Space and Earth Science (ROSES) 2008) to solicit proposals for human-tended suborbital investigations that address any of SMD's research disciplines (Astrophysics, Earth Science, Heliophysics, and Planetary Science). For an overview of SMD research focus areas, refer to The Science Plan for NASA's Science Mission Directorate (2007-2016), available at http://science.hq.nasa.gov/strategy/.

It is NASA's current intent to evaluate a formal solicitation for suborbital spaceflight services in early 2009, which would lead to a pilot program of suborbital flight operations in 2010-2011.

Material in an RFI response is confidential, nonbinding on the respondent, and will be used by NASA for information and planning purposes only. This RFI is not to be construed as a commitment by the Government nor will the Government pay for information solicited. No proposals will be awarded funding as a result of this RFI.

Instructions for Response:

The response to this RFI will be in the form of a PDF document that is uploaded through NASA's NSPIRES system. The response should not exceed three pages in length. NASA is soliciting information that might be used by NASA to facilitate planning for science utilization of the ISS. Material in a RFI response is confidential, nonbinding on the respondent, and will be used by NASA for information and planning purposes only. This RFI is not to be construed as a commitment by the Government nor will the Government pay for information solicited. No proposals will be awarded funding as a result of this RFI. The complete RFI including background, requested information, and instructions for responding may be found at http://nspires.nasaprs.com/ (select "Solicitations" then "Open Solicitations" then "Request for Information (NNH08ZDA004L): Scientist Participant Suborbital Science Pilot Program - Flight Research ").

Responses to this RFI must be submitted no later than March 28, 2008. Companion RFI:

NASA is also releasing a companion RFI, Scientist Participant Suborbital Science Pilot Program - Service Providers (NNH08ZDA003L). In the Service Providers RFI, SMD is requesting technical and programmatic input that will be valuable to NASA to (i) evaluate procuring flight services and (ii) aid potential science investigators in scoping and designing possible future suborbital investigations. The complete service provider RFI including background, requested information, and instructions for responding may be found at http://nspires.nasaprs.com/ (select "Solicitations" then "Open Solicitations" then "Request for Information (NNH08ZDA003L): Scientist Participant Suborbital Science Pilot Program - Service Providers")

For further information on the Scientist Participant Suborbital Science pilot program, please contact Dr. Daniel D. Durda, Science Mission Directorate, NASA, Washington, DC 20546; email at daniel.d.durda@nasa.gov. For further information on NASA's Science programs and programmatic matters, please contact Dr. Paul Hertz, Science Mission Directorate, NASA, Washington, DC 20546; email at paul.hertz@nasa.gov.

NAI Student Poster Competition at AbSciCon

Calling all students who are presenting posters at AbSciCon 2008! You're invited to enter your poster in the NAI Student Poster Competition. First prize is $1500, Second prize is $1000, and Third prize is $500! The DEADLINE TO ENTER IS MONDAY, MARCH 17TH. Judges will be recruited from the astrobiology community, and winners will be announced at the start of the afternoon plenary session on Thursday, April 17th. Information on eligibility requirements and online registration can be found here: http://nai.nasa.gov/postercompetition/. NAI is pleased to be continuing this astrobiology community event! Contact Daniella Scalice at NAI Central with questions: daniella.m.scalice@nasa.gov

Due Date for NASA High End Computing Proposals

The NASA High-End Computing (HEC) Program is considering awards of computing time to Principal Investigators with projects supported by NASA's Science Mission Directorate. Only the PIs of currently funded SMD research projects are eligible to propose. Requests must be submitted at https://ebooks.reisys.com/gsfc/nccs/submission/index.jsp?solId=27 by March 20, 2008, for May 1, 2008 awards.

For additional information about requesting computing time on NASA HEC resources go to http://www.hec.nasa.gov.

Questions may be addressed to Dr. Tsengdar Lee, Scientific Computing Portfolio Manager
NASA Science Mission Directorate,
Phone: 202-358-0860,
Email:Tsengdar.J.Lee@nasa.gov.

Astrobiology Science News 14 March 2008

March 13, 2008

Astrobiology Science News 13 March 2008

March 10, 2008

Astrobiology Science News 10 March 2008

March 7, 2008

Astrobiology Science News 7 March 2008

March 3, 2008

Astrobiology Science News 3 March 2008

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