CH4 Release on Mars,” Geophysical Research Letters 34: L11202, 2007.

  

37. D.M. Hudgins and L.J. Allamandola, “Interstellar PAH Emission in the 11-14 Micron Region: New Insights from Laboratory Data and a Tracer of Ionized PAHs,” Astrophysical Journal 516: L41-L44, 1999.

  

38. M.J. Mumma et al., “Parent Volatiles in Comet 9P/Tempel-1: Before and After Impact,” Science 310: 270-274, 2005.

  

39. M.G. Trainer, A.A. Pavlov, H.L. DeWitt, J.L. Jimenez, C.P. McKay, and M.A. Tolbert, “Organic Haze on Titan and the Early Earth,” Proceedings of the National Academy of Sciences 103: 18035-18042, 2006.

  

40. S.A. Sandford et al., “Organics Captured from Comet 81P/Wild 2 by the Stardust Spacecraft,” Science 314: 1720, 2006.

  

41. D. Brownlee et al., “Comet 81P/Wild 2 Under a Microscope,” Science 314: 1711, 2006.

  

42. J.E. Elsila, J.P. Dworkin, M.P. Bernstein, M.P. Martin, and S.A. Sandford, “Mechanisms of Amino Acid Formation in Interstellar Ice Analog,” Astrophysical Journal 660: 911-918, 2007.

  

43. See, for example, R.P. Butler et al., “Catalog of Nearby Exoplanets,” Astrophysical Journal 646: 505-522, 2006.

  

44. G. Tinetti, A. Vidal-Madjar, M.-C. Liang, J.-P. Beaulieu, et al., “Water Vapour in the Atmosphere of a Transiting Extrasolar Planet,” Nature 448: 169-171, 2007.

  

45. A. Segura, J.F. Kasting, V. Meadows, M. Cohen, J. Scalo, D. Crisp, R.A.H. Butler, and G. Tinetti, “Biosignatures from Earth-like Planets Around M Dwarfs,” Astrobiology 5: 706-725, 2005.

  

46. S.N. Raymond, T. Quinn, and J.I. Lunine, “High-resolution Simulations of the Final Assembly of Earth-Like Planets. 2. Water Delivery and Planetary Habitability,” Astrobiology 7: 66-84, 2007.

  

47. A.M. Mandell, S.N. Raymond, and S. Sigurdsson, “Formation of Earth-like Planets During and After Giant Planet Migration,” Astrophysical Journal 660: 823-844, 2007.

  

48. N.Y. Kiang, A. Segura, G. Tinetti, Govindjee, R.E. Blankenship, M. Cohen, J. Siefert, D. Crisp, and V.S. Meadows, “Spectral Signatures of Photosynthesis. II. Coevolution with Other Stars and the Atmosphere on Extrasolar Worlds,” Astrobiology 7: 252-274, 2007.

  

49. For more information see http://nai.arc.nasa.gov/about/intl_partners_detail.cfm?ID=1 and http://www.cab.inta.es.

  

50. For more information see http://nai.arc.nasa.gov/about/intl_partners_detail.cfm?ID=4 and http://www.lisa.univ-paris12.fr/GDRexobio/exobio.html.

  

51. For more information see http://nai.arc.nasa.gov/about/intl_partners_detail.cfm?ID=2 and http://www.astrobiologysociety.org/.

  

52. For more information see http://nai.arc.nasa.gov/about/intl_partners_detail.cfm?ID=6.

  

53. For more information see http://nai.arc.nasa.gov/about/intl_partners_detail.cfm?ID=5 and http://www.spaceflight.esa.int/exobio.

  

54. For more information see http://nai.arc.nasa.gov/about/intl_partners_detail.cfm?ID=3 and http://aca.mq.edu.au/.

  

55. For more information see http://www.ilasol.org.il/.

  

56. For more information see http://nai.arc.nasa.gov/groups/fao/.

  

57. Information from the NAI’s disciplinary database is courtesy of Shige Abe, NASA Astrobiology Institute.

  

58. For more information see, for example, http://origins.harvard.edu/Overview.html.

  

59. For additional information see, for example, National Research Council, The New Science of Metagenomics: Revealing the Secrets of Our Microbial Planet, The National Academies Press, Washington, D.C., 2007.



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