7. National Research Council, Life in the Universe: An Assessment of U.S. and International Programs in Astrobiology, The National Academies Press, Washington, D.C., 2003, pp. 5 and 28.

  

8. National Research Program, An Assessment of Balance in NASA’s Science Programs, The National Academies Press, Washington, D.C., 2006, pp. 20-21.

  

9. National Research Council, Astronomy and Astrophysics in the New Millennium, National Academy Press, Washington, D.C., 2001.

  

10. National Research Council, New Frontiers in the Solar System: An Integrated Exploration Strategy, The National Academies Press, Washington, D.C., 2003.

  

11. For more information about MEPAG see http://mepag.jpl.nasa.gov/.

  

12. For more information about OPAG see http://www.lpi.usra.edu/opag/.

  

13. For more information about VEXAG see http://www.lpi.usra.edu/vexag/.

  

14. For more information about LEAG see http://www.lpi.usra.edu/leag/.

  

15. For more information about, for example, MEPAG’s Mars Scientific Goals, Objectives, Investigations, and Priorities document, see http://mepag.jpl.nasa.gov/reports/MEPAG%20Goals_2-10-2006.pdf.

  

16. National Research Council, Life in the Universe: An Assessment of U.S. and International Programs in Astrobiology, The National Academies Press, Washington, D.C., 2003, pp. 2 and 13.



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