Ionizing radiation and life

Astrobiology

Volumn 11, Issue 6, 2011, Pages 551-582

  Dartnell, Lewis R ^a  

^a UNIVERSITY COLLEGE LONDON   (United Kingdom)

Author keywords

Biosignature; Cosmic rays; Gamma ray burst; Magnetosphere; Panspermia; Radioactivity; Solar energetic particles; Supernova; Ultraviolet

Indexed keywords

ELEMENT; ORGANIC COMPOUND;

ASTROBIOLOGY; ASTRONOMY; BIOGENESIS; CHEMISTRY; COSMIC RADIATION; MICROCLIMATE; REVIEW;

BIOGENESIS; COSMIC RADIATION; ELEMENTS; EXOBIOLOGY; EXTRATERRESTRIAL ENVIRONMENT; ORGANIC CHEMICALS; PLANETS;

EID: 79961182843     PISSN: 15311074     EISSN: None     Source Type: Journal    
DOI: 10.1089/ast.2010.0528     Document Type: Review

References (335)

1. Abel, T., Bryan, G., and Norman, M. (2002) The formation of the first star in the Universe. Science 295:93-98. (Pubitemid 34052351)
2. Acuña, M.H., Connerney, J., Ness, N., Lin, R., Mitchell, D., Carlson, C., McFadden, J., Anderson, K., Reme, H., Mazelle, C., Vignes, D., Wasilewski, P., and Cloutier, P. (1999) Global distribution of crustal magnetization discovered by the Mars Global Surveyor MAG/ER experiment. Science 284:790-793. (Pubitemid 29291341)
3. Adam, Z. (2007) Actinides and life's origins. Astrobiology 7: 852-872.
4. Aikin, A., Chandra, S., and Stecher, T. (1980) Supernovae effects on the terrestrial atmosphere. Planet Space Sci 28:639-644.
5. Akaboshi, M., Fujii, N., and Navarro-González, R. (2000) The Role of Radiation in the Origin and Evolution of Life, Kyoto University Press, Kyoto.
6. Albarrán, G., Collins, K., and Collins, C. (1987) Formation of organic products in self-radiolyzed calcium carbonate. J Mol Evol 25:12-14.
7. Allen, A., Li, Z.-Y., and Shu, F.H. (2003) Collapse of magnetized singular isothermal toroids. II. Rotation and magnetic braking. Astrophys J 599:363-379. (Pubitemid 38061579)
8. Alley, R. (2000) The Younger Dryas cold interval as viewed from central Greenland. Quat Sci Rev 19:213-226. (Pubitemid 30018294)
9. Amsler, C., Doser, M., Antonelli, M., Asner, D., Babu, K., Baer, H., Band, H., Barnett, R., Bergren, E., Beringer, J., Bernardi, G., Bertl, W., Bichsel, H., Biebel, O., Bloch, P., Blucher, E., Blusk, S., Cahn, R., Carena, M., Caso, C., Ceccucci, A., Chakraborty, D., Chen, M., Chivukula, R., Cowan, G., Dahl, O., D'Ambrosio, G., Damour, T., de Gouvěa, A., DeGrand, T., Dobrescu, B., Drees, M., Edwards, D., Eidelman, S., Elvira, V., Erler, J., Ezhela, V., Feng, J., Fetscher, W., Fields, B., Foster, B., Gaisser, T., Garren, L., Gerber, H., Gerbier, G., Gherghetta, T., Giudice, G., Goodman, M., Grab, C., Gritsan, A., Grivaz, J., Groom, D., Grünewald, M., Gurtu, A., Gutsche, T., Haber, H., Hagiwara, K., Hagmann, C., Hayes, K., Hernández-Rey, J., Hikasa, K., Hinchliffe, I., Höcker, A., Huston, J., Igo-Kemenes, P., Jackson, J., Johnson, K., Junk, T., Karlen, D., Kayser, B., Kirkby, D., Klein, S., Knowles, I., Kolda, C., Kowalewski, R., Kreitz, P., Krusche, B., Kuyanov, Y., Kwon, Y., Lahav, O., Langacker, P., Liddle, A., Ligeti, Z., Lin, C., Liss, T., Littenberg, L., Liu, J., Lugovsky, K., Lugovsky, S., Mahlke, H., Mangano, M., Mannel, T., Manohar, A., Marciano, W., Martin, A., Masoni, A., Milstead, D., Miquel, R., Mönig, K., Murayama, H., Nakamura, K., Narain, M., Nason, P., Navas, S., Nevski, P., Nir, Y., Olive, K., Pape, L., Patrignani, C., Peacock, J., Piepke, A., Punzi, G., Quadt, A., Raby, S., Raffelt, G., Ratcliff, B., Renk, B., Richardson, P., Roesler, S., Rolli, S., Romaniouk, A., Rosenberg, L., Rosner, J., Sachrajda, C., Sakai, Y., Sarkar, S., Sauli, F., Schneider, O., Scott, D., Seligman, W., Shaevitz, M., Sjöstrand, T., Smith, J., Smoot, G., Spanier, S., Spieler, H., Stahl, A., Stanev, T., Stone, S., Sumiyoshi, T., Tanabashi, M., Terning, J., Titov, M., Tkachenko, N., Törnqvist, N., Tovey, D., Trilling, G., Trippe, T., Valencia, G., van Bibber, K., Vincter, M., Vogel, P., Ward, D., Watari, T., Webber, B., Weiglein, G., Wells, J., Whalley, M., Wheeler, A., Wohl, C., Wolfenstein, L., Womersley, J., Woody, C., Workman, R., Yamamoto, A., Yao, W., Zenin, O., Zhang, J., Zhu, R., Zyla, P., Harper, G., Lugovsky, V., and Schaffner, P. (2008a) Cosmic rays. Phys Lett B 667: 254-260.
10. Amsler, C., Doser, M., Antonelli, M., Asner, D., Babu, K., Baer, H., Band, H., Barnett, R., Bergren, E., Beringer, J., Bernardi, G., Bertl, W., Bichsel, H., Biebel, O., Bloch, P., Blucher, E., Blusk, S., Cahn, R., Carena, M., Caso, C., Ceccucci, A., Chakraborty, D., Chen, M., Chivukula, R., Cowan, G., Dahl, O., D'Ambrosio, G., Damour, T., de Gouvěa, A., DeGrand, T., Dobrescu, B., Drees, M., Edwards, D., Eidelman, S., Elvira, V., Erler, J., Ezhela, V., Feng, J., Fetscher, W., Fields, B., Foster, B., Gaisser, T., Garren, L., Gerber, H., Gerbier, G., Gherghetta, T., Giudice, G., Goodman, M., Grab, C., Gritsan, A., Grivaz, J., Groom, D., Grünewald, M., Gurtu, A., Gutsche, T., Haber, H., Hagiwara, K., Hagmann, C., Hayes, K., Hernández-Rey, J., Hikasa, K., Hinchliffe, I., Höcker, A., Huston, J., Igo-Kemenes, P., Jackson, J., Johnson, K., Junk, T., Karlen, D., Kayser, B., Kirkby, D., Klein, S., Knowles, I., Kolda, C., Kowalewski, R., Kreitz, P., Krusche, B., Kuyanov, Y., Kwon, Y., Lahav, O., Langacker, P., Liddle, A., Ligeti, Z., Lin, C., Liss, T., Littenberg, L., Liu, J., Lugovsky, K., Lugovsky, S., Mahlke, H., Mangano, M., Mannel, T., Manohar, A., Marciano, W., Martin, A., Masoni, A., Milstead, D., Miquel, R., Mönig, K., Murayama, H., Nakamura, K., Narain, M., Nason, P., Navas, S., Nevski, P., Nir, Y., Olive, K., Pape, L., Patrignani, C., Peacock, J., Piepke, A., Punzi, G., Quadt, A., Raby, S., Raffelt, G., Ratcliff, B., Renk, B., Richardson, P., Roesler, S., Rolli, S., Romaniouk, A., Rosenberg, L., Rosner, J., Sachrajda, C., Sakai, Y., Sarkar, S., Sauli, F., Schneider, O., Scott, D., Seligman, W., Shaevitz, M., Sjöstrand, T., Smith, J., Smoot, G., Spanier, S., Spieler, H., Stahl, A., Stanev, T., Stone, S., Sumiyoshi, T., Tanabashi, M., Terning, J., Titov, M., Tkachenko, N., Törnqvist, N., Tovey, D., Trilling, G., Trippe, T., Valencia, G., van Bibber, K., Vincter, M., Vogel, P., Ward, D., Watari, T., Webber, B., Weiglein, G., Wells, J., Whalley, M., Wheeler, A., Wohl, C., Wolfenstein, L., Womersley, J., Woody, C., Workman, R., Yamamoto, A., Yao, W., Zenin, O., Zhang, J., Zhu, R., Zyla, P., Harper, G., Lugovsky, V., and Schaffner, P. (2008b) Passage of particles through matter. Phys Lett B 667:267-280.
11. Annis, J. (1999) An astrophysical explanation for the Great Silence. J Br Interplanet Soc 52:19-25.
12. Aubert, J., Tarduno, J., and Johnson, C. (2010) Observations and models of the long-term evolution of Earth's magnetic field. Space Sci Rev 155:337-370.
13. Backes, H., Neubauer, F., Dougherty, M., Achilleos, N., Andre, N., Arridge, C., Bertucci, C., Jones, G., Khurana, K., Russell, C., and Wennmacher, A. (2005) Titan's magnetic field signature during the first Cassini encounter. Science 308:992-995. (Pubitemid 40664403)
14. Bagshaw, M. (2008) Cosmic radiation in commercial aviation. Travel Med Infect Dis 6:125-127. (Pubitemid 351650264)
15. Bailer-Jones, C. (2009) The evidence for and against astronomical impacts on climate change and mass extinctions: a review. International Journal of Astrobiology 8:213-219.
16. Baltschukat, K. and Horneck, G. (1991) Responses to accelerated heavy-ions of spores of Bacillus subtilis of different repair capacity. Radiat Environ Biophys 30:87-103.
17. Banaszkiewicz, M., Lara, L., Rodrigo, R., López-Moreno, J.J., and Molina-Cuberos, G.J. (2000) A coupled model of Titan's atmosphere and ionosphere. Icarus 147:386-404.
18. Battista, J. (1997) Against all odds: the survival strategies of Deinococcus radiodurans. Annu Rev Microbiol 51:203-224. (Pubitemid 27433048)
19. Battista, J., Earl, A., and Park, M.-J. (1999) Why is Deinococcus radiodurans so resistant to ionizing radiation? Trends Microbiol 7:362-365. (Pubitemid 29421661)
20. Bauleo, P.M. and Martino, J.R. (2009) The dawn of the particle astronomy era in ultra-high-energy cosmic rays. Nature 458:847-851.
21. Baumstark-Khan, C. and Facius, R. (2001) Life under conditions of ionizing radiation. In Astrobiology: The Quest for the Conditions of Life, edited by G. Horneck and C. Baumstark-Khan, Springer, Berlin, pp 260-283.
22. Bazilevskaya, G., Krainev, M., and Makhmutov, V. (2000) Effects of cosmic rays on the Earth's environment. Journal of Atmospheric and Solar-Terrestrial Physics 62:1577-1586. (Pubitemid 32149007)
23. Bazilevskaya, G., Usoskin, I., Flückiger, E., Harrison, R., Desorgher, L., Bütikofer, R., Krainev, M., Makhmutov, V., Stozhkov, Y., Svirzhevskaya, A., Svirzhevsky, N., and Kovaltsov, G. (2008) Cosmic ray induced ion production in the atmosphere. Space Sci Rev 137:149-173.
24. Beatty, J., Overmann, J., Lince, M., Manske, A., Lang, A., Blankenship, R., Van Dover, C., Martinson, T., and Plumley, F. (2005) An obligately photosynthetic bacterial anaerobe from a deep-sea hydrothermal vent. Proc Natl Acad Sci USA 102:9306-9310. (Pubitemid 40923559)
25. Beltrán, M.T., Codella, C., Viti, S., Neri, R., and Cesaroni, R. (2009) First detection of glycolaldehyde outside the Galactic Center. Astrophys J 690:L93-L96.
26. Benner, S.A., Kim, H.-J., Kim, M.-J., and Ricardo, A. (2010) Planetary organic chemistry and the origins of biomolecules. Cold Spring Harb Perspect Biol 2, doi:10.1101/cshperspect. a003467.
27. Benton, E.R. and Benton, E.V. (2001) Space radiation dosimetry in low-Earth orbit and beyond. Nucl Instrum Methods Phys Res B 184:255-294. (Pubitemid 32903719)
28. Berger, W.H. (1990) The Younger Dryas cold spell-a quest for causes. Glob Planet Change 3:219-237.
29. Bird, M., Dutta-Roy, R., Asmar, S., and Rebold, T. (1997) Detection of Titan's ionosphere from Voyager 1 radio occultation observations. Icarus 130:426-436. (Pubitemid 127172707)
30. Blandford, R. and Eichler, D. (1987) Particle acceleration at astrophysical shocks: a theory of cosmic ray origin. Phys Rep 154:1-75.
31. Bolaños, L., Lukaszewski, K., Bonilla, I., and Blevins, D. (2004) Why boron? Plant Physiol Biochem 42:907-912. (Pubitemid 40191574)
32. Bonner, W.A. (2000) Parity violation and the evolution of biomolecular homochirality. Chirality 12:114-126. (Pubitemid 30140804)
33. Borucki, W.J., Levin, Z., Whitten, R.C., Keesee, R.G., Capone, L.A., Toon, O.B., and Dubach, J. (1982) Predicted electrical conductivity between 0 and 80km in the venusian atmosphere. Icarus 51:302-321.
34. Borucki, W.J., Levin, Z., Whitten, R.C., Keesee, R.G., Capone, L.A., Summers, A.L., Toon, O.B., and Dubach, J. (1987) Predictions of the electrical conductivity and charging of the aerosols in Titan's atmosphere. Icarus 72:604-622.
35. Borucki, W.J., Whitten, R.C., Bakes, E.L.O., Barth, E., and Tripathi, S. (2006) Predictions of the electrical conductivity and charging of the aerosols in Titan's atmosphere. Icarus 181:527-544. (Pubitemid 43574113)
36. Boyd, R.N., Kajino, T., and Onaka, T. (2010) Supernovae and the chirality of the amino acids. Astrobiology 10:561-568.
37. Brack, A., Horneck, G., Cockell, C.S., Bérces, A., Belisheva, N.K., Eiroa, C., Henning, T., Herbst, T., Kaltenegger, L., Léger, A., Liseau, R., Lammer, H., Selsis, F., Beichman, C., Danchi, W., Fridlund, M., Lunine, J., Paresce, F., Penny, A., Quirrenbach, A., Röttgering, H., Schneider, J., Stam, D., Tinetti, G., and White, G. (2010) Origin and evolution of life on terrestrial planets. Astrobiology 10:69-76.
38. Brakenridge, G.R. (1981) Terrestrial paleoenvironmental effects of a late quaternary-age supernova. Icarus 46:81-93.
39. Bromm, V., Coppi, P., and and Larson, R. (2002) The formation of the first stars. I. The primordial star-forming cloud. Astrophys J 564:23-51. (Pubitemid 37103923)
40. Bromm, V., Yoshida, N., Hernquist, L., and McKee, C. (2009) The formation of the first stars and galaxies. Nature 459:49-54.
41. Brown, R.H., Lebreton, J.-P., and Waite, J.H. (2009) Titan from Cassini-Huygens, Springer, New York.
42. Burchell, M.J. (2004) Panspermia today. International Journal of Astrobiology 3:73-80.
43. Butt, Y. (2009) Beyond the myth of the supernova-remnant origin of cosmic rays. Nature 460:701-704.
44. Cane, H. (2000) Coronal mass ejections and Forbush decreases. Space Sci Rev 93:55-77. (Pubitemid 32001645)
45. Capone, L., Dubach, J., Whitten, R., Prasad, S., and Santhanam, K. (1980) Cosmic ray synthesis of organic molecules in Titan's atmosphere. Icarus 44:72-84.
46. Carslaw, K., Harrison, R., and Kirkby, J. (2002) Cosmic rays, clouds, and climate. Science 298:1732-1737.
47. Charnley, S., Rodgers, S., Kuan, Y., and Huang, H. (2002) Biomolecules in the interstellar medium and in comets. Adv Space Res 30:1419-1431. (Pubitemid 35372125)
48. Chyba, C. (2000a) Energy for microbial life on Europa. Nature 403:381-382. (Pubitemid 30073075)
49. Chyba, C. (2000b) Correction: Energy for microbial life on Europa. Nature 406:368.
50. Chyba, C. and Hand, K. (2001) Life without photosynthesis. Science 292:2026-2027.
51. Chyba, C. and Phillips, C. (2001) Possible ecosystems and the search for life on Europa. Proc Natl Acad Sci USA 98:801-804. (Pubitemid 32121140)
52. Clark, B., Baker, A., Cheng, A., Clemett, S., McKay, D., McSween, H., Pieters, C., Thomas, P., and Zolensky, M. (1999) Survival of life on asteroids, comets and other small bodies. Orig Life Evol Biosph 29:521-545. (Pubitemid 29492310)
53. Clark, B.C. (2001) Planetary interchange of bioactive material: probability factors and implications. Orig Life Evol Biosph 31:185-197. (Pubitemid 32219182)
54. Clarke, J. (1981) Extraterrestrial intelligence and galactic nuclear activity. Icarus 46:94-96.
55. Clowdsley, M.S., Wilson, J.W., Kim, M.-H.Y., Singleterry, R.C., Tripathi, R.K., Heinbockel, J.H., Badavi, F.F., and Shinn, J.L. (2001) Neutron environments on the martian surface. Phys Med 17:94-96. (Pubitemid 32823647)
56. Coates, A.J., Crary, F.J., Lewis, G.R., Young, D.T., Waite, J.H., and Sittler, E.C. (2007) Discovery of heavy negative ions in Titan's ionosphere. Geophys Res Lett 34:L22103.
57. Cockell, C. (1999) Life on Venus. Planet Space Sci 47:1487-1501. (Pubitemid 128634416)
58. Cockell, C.S. (2008) Interstellar planetary protection. Adv Space Res 42:1161-1165.
59. Collins, C., Albarrán, G., and Collins, K. (2000) Irradiation promoted production of organic precursor species in inorganic solids on the prebiotic Earth. In The Role of Radiation in the Origin and Evolution of Life, edited by M. Akaboshi, N. Fujii, and R. Navarro-González, Kyoto University Press, Kyoto, pp 143-153.
60. Committee on the Evaluation of Radiation Shielding for Space Exploration. (2008) Managing Space Radiation Risk in the New Era of Space Exploration, National Academies Press, Washington DC. Available online at http://www.nap.edu/catalog .php?record-id=12045.
61. Committee on the Limits of Organic Life in Planetary Systems. (2007) The Limits of Organic Life in Planetary Systems, National Academies Press, Washington DC. Available online at http:// www.nap.edu/catalog/11919.html.
62. Committee on the Origins and Evolution of Life. (2005) The Astrophysical Context of Life, National Academies Press, Washington DC. Available online at http://www.nap.edu/ catalog/11316.html.
63. Cooper, J.F., Johnson, R.E., Mauk, B.H., Garrett, H.B., and Gehrels, N. (2001) Energetic ion and electron irradiation of the icy Galilean satellites. Icarus 149:133-159. (Pubitemid 33619636)
64. Court, R., Sephton, M., Parnell, J., and Gilmour, I. (2006) The alteration of organic matter in response to ionising irradiation: chemical trends and implications for extraterrestrial sample analysis. Geochim Cosmochim Acta 70:1020-1039. (Pubitemid 43160211)
65. Cox, M. and Battista, J. (2005) Deinococcus radiodurans-the consummate survivor. Nat Rev Microbiol 3:882-892.
66. Cravens, T., Vann, J., Clark, J., Yu, J., Keller, C., and Brull, C. (2004) The ionosphere of Titan: an updated theoretical model. Adv Space Res 33:212-215. (Pubitemid 38439196)
67. Cravens, T.E., Robertson, I.P., Waite, J.H., Yelle, R.V., Kasprzak, W.T., Keller, C.N., Ledvina, S.A., Niemann, H.B., Luhmann, J.G., McNutt, R.L., Ip, W.-H., De La Haye, V., Mueller- Wodarg, I., Wahlund, J.-E., Anicich, V.G., and Vuitton, V. (2006) Composition of Titan's ionosphere. Geophys Res Lett 33:L07105.
68. Crawford, I., Fagents, S., Joy, K., and Rumpf, M. (2010) Lunar palaeoregolith deposits as recorders of the galactic environment of the Solar System and implications for astrobiology. Earth Moon Planets 107:75-85.
69. Crutzen, P.J. and Brühl, C. (1996) Mass extinctions and supernova explosions. Proc Natl Acad Sci USA 93:1582-1584.
70. Cucinotta, F., Saganti, P., Wilson, J., and Simonsen, L. (2002) Model predictions and visualization of the particle flux on the surface of Mars. J Radiat Res (Tokyo) 43:S35-S39.
71. Dadachova, E., Bryan, R., Huang, X., Moadel, T., Schweitzer, A., Aisen, P., Nosanchuk, J., and Casadevall, A. (2007) Ionizing radiation changes the electronic properties of melanin and enhances the growth of melanized fungi. PLoS ONE 2:e457.
72. Dalgarno, A. (2006) The galactic cosmic ray ionization rate. Proc Natl Acad Sci USA 103:12269-12273. (Pubitemid 44267249)
73. Daly, M., Gaidamakova, E., Matrosova, V., Vasilenko, A., Zhai, M., Venkateswaran, A., Hess, M., Omelchenko, M., Kostandarithes, H., Makarova, K., Wackett, L., Fredrickson, J., and Ghosal, D. (2004) Accumulation of Mn(II) in Deinococcus radiodurans facilitates gamma-radiation resistance. Science 306: 1025-1028. (Pubitemid 39482904)
74. Daly, M.J. (2009) A new perspective on radiation resistance based on Deinococcus radiodurans. Nat Rev Microbiol 7:237-245.
75. Dar, A., Laor, A., and Shaviv, N. (1998) Life extinctions by cosmic ray jets. Phys Rev Lett 80:5813-5816. (Pubitemid 128622892)
76. Dartnell, L., Desorgher, L., Ward, J., and Coates, A. (2007a) Modelling the surface and subsurface martian radiation environment: implications for astrobiology. Geophys Res Lett 34:L02207.
77. Dartnell, L.R., Desorgher, L., Ward, J.M., and Coates, A.J. (2007b) Martian sub-surface ionising radiation: biosignatures and geology. Biogeosciences 4:545-558. (Pubitemid 47191464)
78. Dartnell, L.R., Hunter, S., Lovell, K., Coates, A., and Ward, J. (2010) Low-temperature ionizing radiation resistance of Deinococcus radiodurans and Antarctic Dry Valley bacteria. Astrobiology 10:717-732.
79. De Angelis, G., Clowdsley, M.S., Singleterry, R.C., and Wilson, J.W. (2004) A new Mars radiation environment model with visualization. Adv Space Res 34:1328-1332.
80. de La Vega, U., Rettberg, P., and Reitz, G. (2007) Simulation of the environmental climate conditions on martian surface and its effect on Deinococcus radiodurans. Adv Space Res 40:1672-1677. (Pubitemid 350019520)
81. Delitsky, M. and Lane, A. (1998) Ice chemistry on the Galilean satellites. J Geophys Res 103:31391-31403. (Pubitemid 128724738)
82. Dermer, C.D. and Holmes, J.M. (2005) Cosmic rays from gamma ray bursts in the Galaxy. Astrophys J 628:L21-L24. (Pubitemid 41273189)
83. Des Marais, D., Harwit, M., Jucks, K., Kasting, J., Lin, D., Lunine, J., Schneider, J., Seager, S., Traub, W., and Woolf, N. (2002) Remote sensing of planetary properties and biosignatures on extrasolar terrestrial planets. Astrobiology 2:153-181.
84. Desch, S. and Mouschovias, T. (2001) The magnetic decoupling stage of star formation. Astrophys J 550:314-333.
85. Draganic, I. (2005) Radiolysis of water: a look at its origin and occurrence in the nature. Radiation Physics and Chemistry 72:181-186. (Pubitemid 39574216)
86. Draganic, I., Draganic, Z., and Altiparmakov, D. (1983) Natural nuclear reactors and ionizing radiation in the Precambrian. Precambrian Res 20:283-298.
87. Draganic, I.G. (2000) Radiation chemical approaches to chemical evolution processes on Earth and beyond. In The Role of Radiation in the Origin and Evolution of Life, edited by M. Akaboshi, N. Fujii, and R. Navarro- González, Kyoto University Press, Kyoto, pp 53-72.
88. Dubach, J., Whitten, R.C., and Sims, J.S. (1974) The lower ionosphere of Venus. Planet Space Sci 22:525-536.
89. Dwyer, J. (2005) The initiation of lightning by runaway air breakdown. Geophys Res Lett 32:L20808.
90. Ehrenfreund, P. and Charnley, S. (2000) Organic molecules in the interstellar medium, comets, and meteorites: a voyage from dark clouds to the early Earth. Annu Rev Astron Astrophys 38: 427-483.
91. Ejzak, L., Melott, A., Medvedev, M., and Thomas, B. (2007) Terrestrial consequences of spectral and temporal variability in ionizing photon events. Astrophys J 654:373-384.
92. Ellis, J. and Schramm, D. (1995) Could a nearby supernova explosion have caused a mass extinction? Proc Natl Acad Sci USA 92:235-238.
93. Elser, J., Bracken, M., Cleland, E., Gruner, D., Harpole, W., Hillebrand, H., Ngai, J., Seabloom, E., Shurin, J., and Smith, J. (2007) Global analysis of nitrogen and phosphorus limitation of primary producers in freshwater, marine and terrestrial ecosystems. Ecol Lett 10:1135-1142. (Pubitemid 350060402)
94. Erlykin, A. and Wolfendale, A. (2001) Supernova remnants and the origin of the cosmic radiation: II. Spectral variations in space and time. J Phys G Nucl Part Phys 27:959-976.
95. Eugster, O. (2003) Cosmic-ray exposure ages of meteorites and lunar rocks and their significance. Chemie der Erde - Geochemistry 63:3-30. (Pubitemid 36537128)
96. Ewing, D. (1995) The directed evolution of radiation resistance in E. coli. Biochem Biophys Res Commun 216:549-553.
97. Ewing, D. (1997) Production of radiation-resistant E. coli strains by daily X-irradiation. Int J Radiat Biol 71:253-258. (Pubitemid 27144186)
98. Fagents, S.A., Rumpf, M.E., Crawford, I.A., and Joy, K.H. (2010) Preservation potential of implanted solar wind volatiles in lunar paleoregolith deposits buried by lava flows. Icarus 207:595-604.
99. Fahr, H. (2004) Global structure of the heliosphere and interaction with the local interstellar medium: three decades of growing knowledge. Adv Space Res 34:3-13. (Pubitemid 38790943)
100. Fajardo-Cavazos, P., Langenhorst, F., Melosh, H., and Nicholson, W. (2009) Bacterial spores in granite survive hypervelocity launch by spallation: implications for lithopanspermia. Astrobiology 9:647-657.
101. Federman, S.R., Weber, J., and Lambert, D. (1996) Cosmic rayinduced chemistry towards Perseus OB2. Astrophys J 436: 181-190.
102. Feldman, W., Boynton, W., Tokar, R., Prettyman, T., Gasnault, O., Squyres, S., Elphic, R., Lawrence, D., Lawson, S., Maurice, S., McKinney, G., Moore, K., and Reedy, R. (2002) Global distribution of neutrons from Mars: results from Mars Odyssey. Science 297:75-78. (Pubitemid 34743093)
103. Ferrari, F. and Szuszkiewicz, E. (2009) Cosmic rays - A review for astrobiologists. Astrobiology 9:413-436.
104. Fields, B.D., Athanassiadou, T., and Johnson, S.R. (2008) Supernova collisions with the heliosphere. Astrophys J 678:549-562.
105. Fitz, D., Reiner, H., Plankensteiner, K., and Rode, B.M. (2007) Possible origins of biohomochirality. Curr Chem Biol 1:41-52.
106. Fraústo da Silva, J. and Williams, R. (2001) The Biological Chemistry of the Elements: The Inorganic Chemistry of Life, 2nd ed., Oxford University Press, Oxford.
107. Gal-Yam, A., Mazzali, P., Ofek, E., Nugent, P., Kulkarni, S., Kasliwal, M., Quimby, R., Filippenko, A., Cenko, S., Chornock, R.,Waldman, R., Kasen, D., Sullivan,M., Beshore, E., Drake, A., Thomas, R., Bloom, J., Poznanski, D., Miller, A., Foley, R., Silverman, J., Arcavi, I., Ellis, R., and Deng, J. (2009) Supernova 2007bi as a pair-instability explosion. Nature 462:624-627.
108. Galante, D. and Horvath, J.E. (2007a) Biological effects of gamma-ray bursts: distances for severe damage on the biota. International Journal of Astrobiology 6:19-26. (Pubitemid 47299338)
109. Galante, D. and Horvath, J.E. (2007b) Quantitative biological effects of gamma-ray bursts. International Journal of Modern Physics D 16:509-514.
110. Garzón, L. and Garzón, M. (2001) Radioactivity as a significant energy source in prebiotic synthesis. Orig Life Evol Biosph 31:3-13. (Pubitemid 32219173)
111. Gauthier-Lafaye, F. and Weber, F. (2003) Natural nuclear fission reactors: time constraints for occurrence, and their relation to uranium and manganese deposits and to the evolution of the atmosphere. Precambrian Res 120:81-100. (Pubitemid 36125615)
112. Gauthier-Lafaye, F., Holliger, P., and Blanc, P. (1996) Natural fission reactors in the Franceville basin, Gabon: A review of the conditions and results of a "critical event" in a geologic system. Geochim Cosmochim Acta 60:4831-4852.
113. Gehrels, N., Laird, C., Jackman, C., Cannizzo, J., Mattson, B., and Chen, W. (2003) Ozone depletion from nearby supernovae. Astrophys J 585:1169-1176. (Pubitemid 37076879)
114. Ghosal, D., Omelchenko, M., Gaidamakova, E., Matrosova, V., Vasilenko, A., Venkateswaran, A., Zhai, M., Kostandarithes, H., Brim, H., Makarova, K., Wackett, L., Fredrickson, J., and Daly, M. (2005) How radiation kills cells: survival of Deinococcus radiodurans and Shewanella oneidensis under oxidative stress. FEMS Microbiol Rev 29:361-375. (Pubitemid 40432472)
115. Giacalone, J. and Kóta, J. (2006) Acceleration of solar-energetic particles by shocks. Space Sci Rev 124:277-288.
116. Giraud, A., Matic, I., Tenaillon, O., Clara, A., Radman, M., Fons, M., and Taddei, F. (2001) Costs and benefits of high mutation rates: adaptive evolution of bacteria in the mouse gut. Science 291:2606-2608. (Pubitemid 32249685)
117. Gladman, B., Dones, L., Levison, H., and Burns, J. (2005) Impact seeding and reseeding in the inner Solar System. Astrobiology 5:483-496. (Pubitemid 41245565)
118. Glassmeier, K.-H. and Vogt, J. (2010) Magnetic polarity transitions and biospheric effects. Space Sci Rev 155:387-410.
119. Greenberg, R. (2010) Transport rates of radiolytic substances into Europa's ocean: implications for the potential origin and maintenance of life. Astrobiology 10:275-283.
120. Greenberg, R., Geissler, P., Tufts, B., and Hoppa, G. (2000) Habitability of Europa's crust: the role of tidal-tectonic processes. J Geophys Res 105:17551-17562.
121. Grenfell, J., Grießmeier, J.-M., Patzer, B., Rauer, H., Segura, A., Stadelmann, A., Stracke, B., Titz, R., and Von Paris, P. (2007) Biomarker response to galactic cosmic ray-induced NOx and the methane greenhouse effect in the atmosphere of an Earthlike planet orbiting an M dwarf star. Astrobiology 7:208-221. (Pubitemid 46839389)
122. Grew, E., Bada, J., and Hazen, R. (2011) Borate minerals and origin of the RNA World. Orig Life Evol Biosph doi:10.1007/ s11084-010-9233-y.
123. Grießmeier, J.-M., Stadelmann, A., Motschmann, U., Belisheva, N., Lammer, H., and Biernat, H. (2005) Cosmic ray impact on extrasolar Earth-like planets in close-in habitable zones. Astrobiology 5:587-603. (Pubitemid 41643674)
124. Grießmeier, J.-M., Stadelmann, A., Grenfell, J.L., Lammer, H., and Motschmann, U. (2009) On the protection of extrasolar Earth-like planets around K/M stars against galactic cosmic rays. Icarus 199:526-535.
125. Gurevich, A., Zybin, K., and Roussel-Dupre, R. (1999) Lightning initiation by simultaneous effect of runaway breakdown and cosmic ray showers. Phys Lett A 254:79-87.
126. Head, J., Pappalardo, R., and Sullivan, R. (1999) Europa: morphological characteristics of ridges and triple bands from Galileo data (E4 and E6) and assessment of a linear diapirism model. J Geophys Res 104:24223-24236.
127. Herbst, E. and van Dishoeck, E. (2009) Complex organic interstellar molecules. Annu Rev Astron Astrophys 47:427-480.
128. Hollis, J.M., Lovas, F.J., and Jewell, P.R. (2000) Interstellar glycolaldehyde: the first sugar. Astrophys J 540:L107-L110.
129. Horneck, G. (1995) Quantification of the biological effectiveness of environmental UV radiation. J Photochem Photobiol B 31:43-49. (Pubitemid 26008673)
130. Horneck, G. (2000) The microbial world and the case for Mars. Planet Space Sci 48:1053-1063.
131. Horneck, G., Bücker, H., and Reitz, G. (1994) Long-term survival of bacterial spores in space. Adv Space Res 14:41-45.
132. Horneck, G., Rettberg, P., Reitz, G., Wehner, J., Eschweiler, U., Strauch, K., Panitz, C., Starke, V., and Baumstark-Khan, C. (2001) Protection of bacterial spores in space, a contribution to the discussion on panspermia. Orig Life Evol Biosph 31:527-547. (Pubitemid 34003845)
133. Horneck, G., Klaus, D., and Mancinelli, R. (2010) Space microbiology. Microbiol Mol Biol Rev 74:121-156.
134. ICRP. (1991) 1990 Recommendations of the International Commission on Radiological Protection. Annals of the ICRP 21(1-3): 1-201.
135. Imlay, J.A. (2003) Pathways of oxidative damage. Annu Rev Microbiol 57:395-418. (Pubitemid 37392949)
136. Indriolo, N., Geballe, T., Oka, T., and McCall, B. (2007) H+3 in diffuse interstellar clouds: a tracer for the cosmic-ray ionization rate. Astrophys J 671:1736-1747.
137. Ip, W.-H. (1990) Titan's upper ionosphere. Astrophys J 362: 354-363.
138. Irwin, L. and Schulze-Makuch, D. (2003) Strategy for modeling putative multilevel ecosystems on Europa. Astrobiology 3: 813-821.
139. Israel, M., George, J., Mewaldt, R., and deNolfo, G. (2004) An overview of cosmic-ray elemental composition. Advanced Composition Explorer (ACE) News #83. Available online at http://www.srl.caltech.edu/ACE/ACENews/ACENews83 .html.
140. Itoh, T., Martin, W., and Nei, M. (2002) Acceleration of genomic evolution caused by enhanced mutation rate in endocellular symbionts. Proc Natl Acad Sci USA 99:12944-12948.
141. Jackman, C.H., Fleming, E.L., and Vitt, F.M. (2000) Influence of extremely large solar proton events in a changing stratosphere. J Geophys Res 105:11659-1670.
142. Jensen, K.A. and Ewing, R.C. (2001) The Okélobondo natural fission reactor, southeast Gabon: geology, mineralogy, and retardation of nuclear-reaction products. Geol Soc Am Bull 113:32-62. (Pubitemid 33066506)
143. Jolivet, E., L'Haridon, S., Corre, E., Forterre, P., and Prieur, D. (2003) Thermococcus gammatolerans sp. nov., a hyperthermophilic archaeon from a deep-sea hydrothermal vent that resists ionizing radiation. Int J Syst Evol Microbiol 53:847-851. (Pubitemid 36675484)
144. Jolivet, E., Corre, E., L'Haridon, S., Forterre, P., and Prieur, D. (2004) Thermococcus marinus sp. nov. and Thermococcus radiotolerans sp. nov., two hyperthermophilic archaea from deepsea hydrothermal vents that resist ionizing radiation. Extremophiles 8:219-227. (Pubitemid 40876327)
145. Kaltenegger, L., Traub, W., and and Jucks, K. (2007) Spectral evolution of an Earth-like planet. Astrophys J 658:598-616.
146. Karam, P.A. and Leslie, S. (1999) Calculations of background beta-gamma radiation dose through geologic time. Health Phys 77:662-667.
147. Karam, P.A., Leslie, S.A., and Anbar, A. (2001) The effects of changing atmospheric oxygen concentrations and background radiation levels on radiogenic DNA damage rates. Health Phys 81:545-553. (Pubitemid 32976958)
148. Keller, C.N., Anicich, V.G., and Cravens, T.E. (1998) Model of Titan's ionosphere with detailed hydrocarbon ion chemistry. Planet Space Sci 46:1157-1174. (Pubitemid 128411526)
149. Khodachenko, M., Ribas, I., Lammer, H., Grießmeier, J.-M., Leitner, M., Selsis, F., Eiroa, C., Hanslmeier, A., Biernat, H., Farrugia, C., and Rucker, H. (2007) Coronal mass ejection (CME) activity of low mass M stars as an important factor for the habitability of terrestrial exoplanets. I. CME impact on expected magnetospheres of Earth-like exoplanets in close-in habitable zones. Astrobiology 7:167-184. (Pubitemid 46839387)
150. Kiefer, J. (1990) Biological Radiation Effects, Springer-Verlag, Heidelberg.
151. Kim, M.-H., Thibeault, S., Simonsen, L., and Wilson, J. (1998) Comparison of martian meteorites and martian regolith as shield materials for galactic cosmic rays. NASA/TP-1998-208724, National Aeronautics and Space Administration, Washington DC. Available online at http://citeseerx.ist. psu.edu/viewdoc/ download?doi = 10.1.1.35.9576&rep=rep1&type = pdf.
152. Kirkby, J. (2007) Cosmic rays and climate. Surveys in Geophysics 28:333-375.
153. Kivelson, M., Khurana, K., Russell, C., Walker, R., Warnecke, J., Coroniti, F., Polanskey, C., Southwood, D., and Schubert, G. (1996) Discovery of Ganymede's magnetic field by the Galileo spacecraft. Nature 384:537-541.
154. Kivelson, M.G. and Russell, C.T., editors. (1995) Introduction to Space Physics, Cambridge University Press, Cambridge.
155. Klapdor-Kleingrothaus, H.V. and Zuber, K. (2000) Chapter 8: cosmic radiation. In Particle Astrophysics, Institute of Physics Publishing, Bristol, pp 223-247.
156. Kminek, G. and Bada, J. (2006) The effect of ionizing radiation on the preservation of amino acids on Mars. Earth Planet Science Lett 245:1-5.
157. Kminek, G., Bada, J., Pogliano, K., and Ward, J. (2003) Radiationdependent limit for the viability of bacterial spores in halite fluid inclusions and on Mars. Radiat Res 159:722-729. (Pubitemid 36676864)
158. Knie, K., Korschinek, G., Faestermann, T., Wallner, C., Scholten, J., and Hillebrandt, W. (1999) Indication for supernova produced Fe-60 activity on Earth. Phys Rev Lett 83:18-21. (Pubitemid 129690049)
159. Knie, K., Korschinek, G., Faestermann, T., Dorfi, E., Rugel, G., and Wallner, A. (2004) Fe-60 anomaly in a deep-sea manganese crust and implications for a nearby supernova source. Phys Rev Lett 93, doi:10.1103/PhysRevLett.93. 171103.
160. Kobayashi, K. and Tsuji, T. (1997) Abiotic synthesis of uracil from carbon monoxide, nitrogen and water by proton irradiation. Chemistry Letters 26:903-904.
161. Kobayashi, K., Kaneko, T., Saito, T., and Oshima, T. (1998) Amino acid formation in gas mixtures by high energy particle irradiation. Orig Life Evol Biosph 28:155-165. (Pubitemid 128513028)
162. Kobayashi, K., Kaneko, T., and Saito, T. (1999) Characterization of complex organic compounds formed in simulated planetary atmospheres by the action of high energy particles. Adv Space Res 24:461-464.
163. Kolomnikov, I., Lysyak, T.V., Konash, E., Kalyazin, E.P., Rudnev, A.V., and Kharitonov, Y.Y. (1982) Formation of organic products from metal carbonates and water by the action of ionizing radiation. Doklady Physical Chemistry (English Translation) 265:912-913.
164. Krasnopolsky, V. (2009) A photochemical model of Titan's atmosphere and ionosphere. Icarus 201:226-256.
165. Kuan, Y.-J., Charnley, S., Huang, H.-C., Tseng, W.-L., and and Kisiel, Z. (2003) Interstellar glycine. Astrophys J 593: 848-867. (Pubitemid 37105048)
166. Kuznetsov, N.V., Nymmik, R.A., and Panasyuk, M.I. (2001) The balance between fluxes of galactic cosmic rays and solar energetic particles, depending on solar activity. In Proceedings of the 27th International Cosmic Ray Conference. Hamburg, Germany, International Union of Pure and Applied Physics, London, Vol. 8, pp 3193-3196.
167. Lammer, H., Bredehöft, J., Coustenis, A., Khodachenko, M., Kaltenegger, L., Grasset, O., Prieur, D., Raulin, F., Ehrenfreund, P., Yamauchi, M., Wahlund, J., Grießmeier, J., Stangl, G., Cockell, C., Kulikov, Y., Grenfell, J., and Rauer, H. (2009) What makes a planet habitable? Astronomy and Astrophysics Review 17:181-249.
168. Larson, R.B. (2003) The physics of star formation. Rep Prog Phys 66:1651-1697. (Pubitemid 37375095)
169. Larson, R.B. (2010) Angular momentum and the formation of stars and black holes. Rep Prog Phys 73, doi:10.1088/0034- 4885/73/1/014901.
170. Laut, P. (2003) Solar activity and terrestrial climate: an analysis of some purported correlations. Journal of Atmospheric and Solar-Terrestrial Physics 65:801-812. (Pubitemid 36726835)
171. Le Postollec, A., Incerti, S., Dobrijevic, M., Desorgher, L., Santin, G., Moretto, P., Vandenabeele-Trambouze, O., Coussot, G., Dartnell, L., and Nieminen, P. (2009a) Monte-Carlo simulation of the radiation environment encountered by a biochip during a space mission to Mars. Astrobiology 9:311-323.
172. Le Postollec, A., Coussot, G., Baqué, M., Incerti, S., Desvignes, I., Moretto, P., Dobrijevic, M., and Vandenabeele-Trambouze, O. (2009b) Investigation of neutron radiation effects on polyclonal antibodies (IgG) and fluorescein dye for astrobiological applications. Astrobiology 9:637-645.
173. Lieberman, B.S. and Melott, A.L. (2007) Considering the case for biodiversity cycles: re-examining the evidence for periodicity in the fossil record. PLoS ONE 2:e759.
174. Lim, M. (2002) Cosmic rays: are air crew at risk? Occup Environ Med 59:428-432. (Pubitemid 34785688)
175. Lin, L.-H., Wang, P.-L., Rumble, D., Lippmann-Pipke, J., Boice, E., Pratt, L., Lollar, B., Brodie, E., Hazen, T., Andersen, G., DeSantis, T., Moser, D., Kershaw, D., and Onstott, T. (2006) Long-term sustainability of a high-energy, low-diversity crustal biome. Science 314:479-482.
176. Lineweaver, C., Fenner, Y., and Gibson, B. (2004) The galactic habitable zone and the age distribution of complex life in the Milky Way. Science 303:59-62. (Pubitemid 38055767)
177. Lovelock, J.E. (1965) A physical basis for life detection experiments. Nature 207:568-570.
178. Lucey, P. (2000) Potential for prebiotic chemistry at the poles of the Moon. Proc SPIE 4137:84-88. (Pubitemid 32227342)
179. Luckey, T.D. (2008) The evidence for gamma ray photosynthesis. 21st Century Science & Technology, Fall-Winter 2008, pp 4-6. Available online at http://www.21stcenturysciencetech.com/ Articles%202008/F-W-2008/Research- Communication.pdf.
180. Lyons, L.R. (1997) Magnetospheric processes leading to precipitation. Space Sci Rev 80:109-132. (Pubitemid 127507606)
181. Makarova, K., Aravind, L., Wolf, Y., Tatusov, R., Minton, K., Koonin, E., and Daly, M. (2001) Genome of the extremely radiation-resistant bacterium Deinococcus radiodurans viewed from the perspective of comparative genomics. Microbiol Mol Biol Rev 65:44-79. (Pubitemid 32204287)
182. Martín, O., Galante, D., Cárdenas, R., and Horvath, J. (2009) Short-term effects of gamma ray bursts on Earth. Astrophys Space Sci 321:161-167.
183. Martin-Torres, F. and Molina-Cuberos, G. (2002) Ion-neutral model of the lower ionosphere of Venus [abstract P21A-11]. In AGU Spring Meeting Abstracts, American Geophysical Union, Washington DC.
184. McKee, C. and Ostriker, E. (2007) Theory of star formation. Annu Rev Astron Astrophys 45:565-687.
185. Medvedev, M. and Melott, A. (2007) Do extragalactic cosmic rays induce cycles in fossil diversity? Astrophysical J 664: 879-889.
186. Melosh, H. (1984) Impact ejection, spallation, and the origin of meteorites. Icarus 59:234-260.
187. Melosh, H. (2004) Exchange of meteorites (and life?) between stellar systems. Astrobiology 3:207-215.
188. Melott, A.L. and Thomas, B.C. (2009) Late Ordovician geographic patterns of extinction compared with simulations of astrophysical ionizing radiation damage. Paleobiology 35: 311-320.
189. Melott, A., Lieberman, B., Laird, C., Martin, L., Medvedev, M., Thomas, B., Cannizzo, J., Gehrels, N., and Jackman, C. (2004) Did a gamma-ray burst initiate the late Ordovician mass extinction? International Journal of Astrobiology 3:55-61.
190. Melott, A., Thomas, B., Hogan, D., Ejzak, L., and Jackman, C. (2005) Climatic and biogeochemical effects of a galactic gamma ray burst. Geophys Res Lett 32:L14808.
191. Melott, A., Krejci, A., Thomas, B., Medvedev, M., Wilson, G., and Murray, M. (2008) Atmospheric consequences of cosmicray variability in the extragalactic shock model. J Geophys Res 113, doi:10.1029/2008JE003206.
192. Meneguzzi, M., Audouze, J., and Reeves, H. (1971) The production of the elements Li, Be, B by galactic cosmic rays in space and its relation with stellar observations. Astron Astrophys 15:337-359.
193. Mewaldt, R. (2006) Solar energetic particle composition, energy spectra, and space weather. Space Sci Rev 124:303-316.
194. Mileikowsky, C., Cucinotta, F., Wilson, J., Gladman, B., Horneck, G., Lindegren, L., Melosh, J., Rickman, H., Valtonen, M., and Zheng, J. (2000) Natural transfer of viable microbes in space. 1. From Mars to Earth and Earth to Mars. Icarus 145:391-427.
195. Minton, K. (1994) DNA repair in the extremely radioresistant bacterium Deinococcus radiodurans. Mol Microbiol 13:9-15. (Pubitemid 24220538)
196. Mitrofanov, I., Anfimov, D., Kozyrev, A., Litvak, M., Sanin, A., Tret'yakov, V., Krylov, A., Shvetsov, V., Boynton, W., Shinohara, C., Hamara, D., and Saunders, R. (2002) Maps of subsurface hydrogen from the High Energy Neutron Detector, Mars Odyssey. Science 297:78-81. (Pubitemid 34743094)
197. Moeller, R., Rohde, M., and Reitz, G. (2010) Effects of ionizing radiation on the survival of bacterial spores in artificial martian regolith. Icarus 206:783-786.
198. Molina-Cuberos, G., Lopez-Moreno, J., Rodrigo, R., and Lara, L. (1999a) Chemistry of the galactic cosmic ray induced ionosphere of Titan. J Geophys Res 104:21997-22024.
199. Molina-Cuberos, G., Lopez-Moreno, J., Rodrigo, R., Lara, L., and O'Brien, K. (1999b) Ionization by cosmic rays of the atmosphere of Titan. Planet Space Sci 47:1347-1354. (Pubitemid 128644373)
200. Molina-Cuberos, G.J., Stumptner, W., Lammer, H., Komle, N.I., and O'Brien, K. (2001) Cosmic ray and UV radiation models on the ancient martian surface. Icarus 154:216-222.
201. Moore, M., Hudson, R., and Gerakines, P. (2001) Mid- and farinfrared spectroscopic studies of the influence of temperature, ultraviolet photolysis and ion irradiation on cosmic-type ices. Spectrochim Acta A Mol Biomol Spectrosc 57:843-858.
202. Nagy, B., Gauthier-Lafaye, F., Holliger, P., Davis, D., Mossman, D., Leventhal, J., Rigali, M., and Parnell, J. (1991) Organic matter and containment of uranium and fissiogenic isotopes at the Oklo natural reactors. Nature 354:472-475.
203. NCRP. (1993) Limitation of Exposure to Ionizing Radiation, NCRP Report No. 116, National Council on Radiation Protection and Measurements, Bethesda, MD. Available online at http:// www.ncrponline.org/Publications/116press.html.
204. NCRP. (2006) Information Needed to Make Radiation Protection Recommendations for Space Missions Beyond Low-Earth Orbit, NCRP Report No. 153, National Council on Radiation Protection and Measurements, Bethesda, MD. Available online at http:// www.ncrponline.org/Publications/153press.html.
205. Nelson, G.A. (2003) Fundamental space radiobiology. Gravit Space Biol Bull 16:29-36.
206. Nicholson,W. (2009) Ancient micronauts: interplanetary transport of microbes by cosmic impacts. Trends Microbiol 17:243-250.
207. Nielsen, F.H. (1998) Ultratrace elements in nutrition: current knowledge and speculation. The Journal of Trace Elements in Experimental Medicine 11:251-274. (Pubitemid 28344714)
208. Nyquist, L. (1983) Do oblique impacts produce martian meteorites? J Geophys Res 88(Supplement):A785-A798.
209. O'Brien, K., Friedberg, W., Sauer, H., and Smart, D. (1996) Atmospheric cosmic rays and solar energetic particles at aircraft altitudes. Environ Int 22:9-44.
210. Öberg, K.I., Fuchs, G.W., Awad, Z., Fraser, H.J., Schlemmer, S., van Dishoeck, E.F., and Linnartz, H. (2007) Photodesorption of CO Ice. Astrophys J 662:L23-L26.
211. Overholt, A.C., Melott, A.L., and Pohl, M. (2009) Testing the link between terrestrial climate change and galactic spiral arm transit. The Astrophysical Journal Letters 705:L101-L103.
212. Padovani, M., Galli, D., and Glassgold, A.E. (2009) Cosmic-ray ionization of molecular clouds. Astron Astrophys 501:619-631.
213. Parnell, J. (1996) Petrographic relationships between mineral phases and bitumen in the Oklo Proterozoic natural fission reactors, Gabon. Mineral Mag 60:581-593.
214. Parnell, J. (2004a) Mineral radioactivity in sands as a mechanism for fixation of organic carbon on the early Earth. Orig Life Evol Biosph 34:533-547. (Pubitemid 39350947)
215. Parnell, J. (2004b) Plate tectonics, surface mineralogy, and the early evolution of life. International Journal of Astrobiology 3:131-137.
216. Parnell, J., Baron, M., and Lindgren, P. (2006) Potential for irradiation of methane to form complex organic molecules in impact craters: implications for Mars, Titan and Europa. Journal of Geochemical Exploration 89:322-325.
217. Patel, M., Zarnecki, J., and Catling, D. (2002) Ultraviolet radiation on the surface of Mars and the Beagle 2 UV sensor. Planet Space Sci 50:915-927. (Pubitemid 35213988)
218. Pavlov, A., Blinov, A., and Konstantinov, A. (2002) Sterilization of martian surface by cosmic radiation. Planet Space Sci 50: 669-673.
219. Pavlov, A., Pavlov, A., Mills, M., Ostryakov, V., Vasilyev, G., and Toon, O. (2005a) Catastrophic ozone loss during passage of the Solar System through an interstellar cloud. Geophys Res Lett 32:L01815.
220. Pavlov, A., Toon, O., Pavlov, A., Bally, J., and Pollard, D. (2005b) Passing through a giant molecular cloud: "snowball" glaciations produced by interstellar dust. Geophys Res Lett 32: L03705.
221. Peñate, L., Martin, O., Cardenas, R., and Agusti, S. (2010) Shortterm effects of gamma ray bursts on oceanic photosynthesis. arXiv:1007.2879v1.
222. Pierce, J. and Adams, P. (2009) Can cosmic rays affect cloud condensation nuclei by altering new particle formation rates? Geophys Res Lett 36:L09820.
223. Pigliucci, M. (2008) Is evolvability evolvable? Nat Rev Genet 9: 75-82. (Pubitemid 350277301)
224. Pimblott, S.M. and LaVerne, J.A. (1992) Molecular product formation in the electron radiolysis of water. Radiat Res 129: 265-271.
225. Prantzos, N. (2006) Li, Be, B and cosmic rays in the Galaxy. Chemical Abundances and Mixing in Stars in the Milky Way and Its Satellites, edited by S. Randich and L. Pasquini, Springer, Berlin, pp 351-357. (Pubitemid 44509513)
226. Prantzos, N. (2007) Origin and evolution of the light nuclides. Space Sci Rev 130:27-42. (Pubitemid 47476511)
227. Prantzos, N., Casse, M., and Vangioni-Flam, E. (1993) Production and evolution of LiBeB isotopes in the Galaxy. Astrophysical J 403:630-643.
228. Prinn, R. and Fegley, B. (1987) The atmospheres of Venus, Earth, and Mars: a critical comparison. Ann Rev Earth Planet Sci 15:171-212.
229. Radman, M., Matic, I., and Taddei, F. (1999) Evolution of evolvability. Ann NY Acad Sci 870:146-155. (Pubitemid 29349338)
230. Rahmstorf, S., Archer, D., Ebel, D.S., Eugster, O., Jouzel, J., Maraun, D., Neu, U., Schmidt, G.A., Severinghaus, J., Weaver, A.J., and Zachos, J. (2004) Cosmic rays, carbon dioxide and climate. Eos 85, doi:10.1029/ 2004EO040002.
231. Ramaty, R., Lingenfelter, R., and Kozlovsky, B. (2001) Spallogenic light elements and cosmic-ray origin. Space Sci Rev 99:51-60.
232. Rathgeber, C., Lince, M., Alric, J., Lang, A., Humphrey, E., Blankenship, R., Verméglio, A., Plumley, F., Van Dover, C., Beatty, J., and Yurkov, V. (2008) Vertical distribution and characterization of aerobic phototrophic bacteria at the Juan de Fuca Ridge in the Pacific Ocean. Photosynth Res 97:235-244.
233. Raulin, F., Bruston, P., Paillous, P., and Sternberg, R. (1995) The low temperature organic chemistry of Titan's geofluid. Adv Space Res 15:321-333.
234. Raulin, F., McKay, C., Lunine, J., and Owen, T. (2009) Titan's astrobiology. In Titan from Cassini-Huygens, edited by R.H. Brown, J.-P. Lebreton, and J.H. Waite, Springer, Dordrecht, pp 215-234.
235. Reedy, R., Arnold, J., and Lal, D. (1983) Cosmic-ray record in Solar System matter. Annual Review of Nuclear and Particle Science 33:505-538.
236. Rees, M. (1987) The origin and cosmogonic implications of seed magnetic fields. Quarterly Journal of the Royal Astronomical Society 28:197-206.
237. Reeves, H. (1994) On the origin of the light elements (Z
238. Reeves, H., Fowler, W.A., and Hoyle, F. (1970) Galactic cosmic ray origin of Li, Be and B in Stars. Nature 226:727-729.
239. Reid, G., Isaksen, I., Holzer, T., and Crutzen, P. (1976) Influence of ancient solar-proton events on the evolution of life. Nature 259:177-179.
240. Reid, G., McAfee, J., and Crutzen, P. (1978) Effects of intense stratospheric ionisation events. Nature 275:489-492. (Pubitemid 9020555)
241. Reynolds, R., Squyres, S., Colburn, D., and McKay, C. (1983) On the habitability of Europa. Icarus 56:246-254.
242. Ricardo, A., Carrigan, M., Olcott, A., and Benner, S. (2004) Borate minerals stabilize ribose. Science 303:196. (Pubitemid 38057562)
243. Richmond, R., Sridhar, R., and Daly, M.J. (1999) Physicochemical survival pattern for the radiophile Deinococcus radiodurans: a polyextremophilemodel for life onMars. Proc SPIE 3755:210-222. (Pubitemid 30547899)
244. Roboz, A. and Nagy, A. (1994) The energetics of Titan's ionosphere. J Geophys Res 99:2087-2093.
245. Rohde, R. and Muller, R. (2005) Cycles in fossil diversity. Nature 434:208-210. (Pubitemid 40388049)
246. Ruderman, M. (1974) Possible consequences of nearby supernova explosions for atmospheric ozone and terrestrial life. Science 184:1079-1081.
247. Ryan, J., Lockwood, J., and Debrunner, H. (2000) Solar energetic particles. Space Sci Rev 93:35-53. (Pubitemid 32001644)
248. Sagan, C., Thompson, W., Carlson, R., Gurnett, D., and Hord, C. (1993) A search for life on Earth from the Galileo spacecraft. Nature 365:715-721. (Pubitemid 24399022)
249. Saganti, P., Cucinotta, F., Wilson, J., Simonsen, L., and Zeitlin, C. (2004) Radiation climate map for analyzing risks to astronauts on the Mars surface from galactic cosmic rays. Space Sci Rev 110:143-156.
250. Scalo, J. and Wheeler, J.C. (2002) Astrophysical and astrobiological implications of gamma-ray burst properties. Astrophys J 566:723-737. (Pubitemid 37117578)
251. Scalo, J., Kaltenegger, L., Segura, A.G., Fridlund, M., Ribas, I., Kulikov, Y.N., Grenfell, J.L., Rauer, H., Odert, P., Leitzinger,M., Selsis, F., Khodachenko, M.L., Eiroa,C., Kasting, J., and Lammer, H. (2007)MStars as targets for terrestrial exoplanet searches and biosignature detection. Astrobiology 7:85-166. (Pubitemid 46839386)
252. Scherer, K., Fichtner, H., and Stawicki, O. (2002) Shielded by the wind: the influence of the interstellar medium on the environment of Earth. Journal of Atmospheric and Solar-Terrestrial Physics 64:795-804. (Pubitemid 34781307)
253. Scherer, K., Fichtner, H., Borrmann, T., Beer, J., Desorgher, L., Flükiger, E., Fahr, H.-J., Ferreira, S., Langner, U., Potgieter, M., Heber, B., Masarik, J., Shaviv, N., and Veizer, J. (2006) Interstellar- terrestrial relations: variable cosmic environments, the dynamic heliosphere, and their imprints on terrestrial archives and climate. Space Sci Rev 127:327-465. (Pubitemid 46473778)
254. Schneider, S.I. and Kasting, J.F. (2009) Radiation environments on Mars and their implications for terrestrial planetary habitability. In Bioastronomy 2007: Molecules, Microbes and Extraterrestrial Life, ASP Conference Series Vol. 420, Astronomical Society of the Pacific, San Francisco, p 149.
255. Schuerger, A., Richards, J., Newcombe, D., and Venkateswaran, K. (2006) Rapid inactivation of seven Bacillus spp. under simulated Mars UV irradiation. Icarus 181:52-62. (Pubitemid 43286278)
256. Schulze-Makuch, D. and Irwin, L.N. (2008) Life in the Universe: Expectations and Constraints, Springer-Verlag, Berlin.
257. Schulze-Makuch, D., Grinspoon, D., Abbas, O., Irwin, L., and Bullock, M. (2004) A sulfur-based survival strategy for putative phototrophic life in the venusian atmosphere. Astrobiology 4:11-18. (Pubitemid 40757229)
258. Segura, A., Kasting, J., Meadows, V., Cohen, M., Scalo, J., Crisp, D., Butler, R., and Tinetti, G. (2005) Biosignatures from Earthlike planets around M dwarfs. Astrobiology 5:706-725. (Pubitemid 43180877)
259. Segura, A., Walkowicz, L., Meadows, V., Kasting, J., and Hawley, S. (2010) The effect of a strong stellar flare on the atmospheric chemistry of an Earth-like planet orbiting an M dwarf. Astrobiology 10:751-771.
260. Setlow, P. (1994) Mechanisms which contribute to the long-term survival of spores of Bacillus species. J Appl Bacteriol 176:49S-60S. (Pubitemid 24235080)
261. Shaviv, N. (2002) Cosmic ray diffusion from the galactic spiral arms, iron meteorites, and a possible climatic connection. Phys Rev Lett 89, doi:10.1103/PhysRevLett.89.051102.
262. Shaviv, N. (2003) The spiral structure of the Milky Way, cosmic rays, and ice age epochs on Earth. New Astronomy 8:39-77.
263. Shaviv, N. (2005) On climate response to changes in the cosmic ray flux and radiative budget. J Geophys Res 110, doi:10.1029/ 2004JA010866.
264. Shaw, A.M. (2007) Astrochemistry: from Astronomy to Astrobiology, Wiley, Chichester, England.
265. Shea, M.A. and Smart, D.F. (2000) Cosmic ray implications for human health. Space Sci Rev 93:187-205. (Pubitemid 32001651)
266. Shea, M.A., Smart, D.F., McCracken, K.G., Dreschhoff, G., and Spence, H.E. (2006) Solar proton events for 450 years: the Carrington event in perspective. Adv Space Res 38:232-238. (Pubitemid 44537536)
267. Simakov, M., Kuzicheva, E., Antropov, A., and Dodonova, N. (2002) Abiogenic synthesis of nucleotides on the surface of small space bodies with high energy particles. Adv Space Res 30:1489-1494. (Pubitemid 35374768)
268. Simonsen, L., Nealy, J., Townsend, L., and Wilson, J. (1990) Radiation exposure for manned Mars surface missions. NASA Technical Paper 2979, National Aeronautics and Space Administration, Washington DC. Available online at http:// hdl.handle.net/2060/19900009041.
269. Simonsen, L., Nealy, J., Townsend, L., and Wilson, J. (1991) Martian regolith as space radiation shielding. J Spacecr Rockets 28:7-8. (Pubitemid 21731316)
270. Simonsen, L.C. and Nealy, J.E. (1993) Mars surface radiation exposure for solar maximum conditions and 1989 solar proton events. NASA Technical Paper 3300, National Aeronautics and Space Administration, Washington DC. Available online at http://hdl.handle.net/2060/19930009920.
271. Smith, D. and Scalo, J. (2009) Habitable zones exposed: astrosphere collapse frequency as a function of stellar mass. Astrobiology 9:673-681.
272. Smith, D., Scalo, J., and Wheeler, J. (2004a) Transport of ionizing radiation in terrestrial-like exoplanet atmospheres. Icarus 171:229-253. (Pubitemid 39145779)
273. Smith, D., Scalo, J., and Wheeler, J.C. (2004b) Importance of biologically active aurora-like ultraviolet emission: stochastic irradiation of Earth and Mars by flares and explosions. Orig Life Evol Biosph 34:513-532. (Pubitemid 39350956)
274. Snow, T. and Bierbaum, V. (2008) Ion chemistry in the interstellar medium. Annual Review of Analytical Chemistry 1:229-259.
275. Snyder, L., Lovas, F., Hollis, J., Friedel, D., Jewell, P., Remijan, A., Ilyushin, V., Alekseev, E., and and Dyubko, S. (2005) A rigorous attempt to verify interstellar glycine. Astrophys J 619:914-930.
276. Squyres, S. and Kasting, J. (1994) Early Mars: how warm and how wet? Science 265:744-749. (Pubitemid 24267020)
277. Squyres, S., Grotzinger, J., Arvidson, R., Bell, J., Calvin, W., Christensen, P., Clark, B., Crisp, J., Farrand, W., Herkenhoff, K., Johnson, J., Klingelhofer, G., Knoll, A., McLennan, S., McSween, H., Morris, R., Rice, J., Rieder, R., and Soderblom, L. (2004) In situ evidence for an ancient aqueous environment at Meridiani Planum, Mars. Science 306:1709-1714. (Pubitemid 39601379)
278. Stevenson, D. (1999) Life-sustaining planets in interstellar space? Nature 400:32.
279. Stone, E., Cummings, A., McDonald, F., Heikkila, B., Lal, N., and Webber, W. (2005) Voyager 1 explores the termination shock region and the heliosheath beyond. Science 309:2017-2020. (Pubitemid 41362311)
280. Stone, E., Cummings, A., McDonald, F., Heikkila, B., Lal, N., and Webber, W. (2008) An asymmetric solar wind termination shock. Nature 454:71-74. (Pubitemid 351931972)
281. Stozhkov, Y.I. (2003) The role of cosmic rays in the atmospheric processes. J Phys G Nucl Part Phys 29, doi:10.1088/0954-3899/ 29/5/312.
282. Svensmark, H. (2000) Cosmic rays and Earth's climate. Space Sci Rev 93:175-185. (Pubitemid 32001650)
283. Svensmark, H. (2006) Cosmic rays and the biosphere over 4 billion years. Astronomische Nachrichten 327:871-875. (Pubitemid 44682082)
284. Svensmark, H. (2007) Cosmoclimatology: a new theory emerges. Astronomy & Geophysics 48:1.18-1.24.
285. Svensmark, H. and Friis-Christensen, E. (1997) Variation of cosmic ray flux and global cloud coverage-a missing link in solar-climate relationships. Journal of Atmospheric and Solar- Terrestrial Physics 59:1225-1232.
286. Svensmark, H., Bondo, T., and Svensmark, J. (2009) Cosmic ray decreases affect atmospheric aerosols and clouds. Geophys Res Lett 36:L15101.
287. Tan, J.C. and McKee, C.F. (2004) The formation of the first stars. I. Mass infall rates, accretion disk structure, and protostellar evolution. Astrophys J 603:383-400. (Pubitemid 38545792)
288. Tan, J. and McKee, C. (2008) Star formation at zero and very low metallicities. In FIRST STARS III: First Stars II Conference, AIP Conference Proceedings 990, edited by B.W. O'Shea, A. Heger, and T. Abel, American Institute of Physics, Melville, NY, pp 47-62.
289. Tanaka, H. (2006) Possible terrestrial effects of a nearby supernova explosion-atmosphere's response. Journal of Atmospheric and Solar-Terrestrial Physics 68:1396-1400. (Pubitemid 44089424)
290. Tarduno, J., Cottrell, R., Watkeys, M., Hofmann, A., Doubrovine, P., Mamajek, E., Liu, D., Sibeck, D., Neukirch, L., and Usui, Y. (2010) Geodynamo, solar wind, and magnetopause 3.4 to 3.45 billion years ago. Science 327:1238-1240.
291. ten Kate, I., Garry, J., Peeters, Z., Quinn, R., Foing, B., and Ehrenfreund, P. (2005) Amino acid photostability on the martian surface. Meteorit Planet Sci 40:1185-1193. (Pubitemid 41556362)
292. Thomas, B. (2009) Gamma-ray bursts as a threat to life on Earth. International Journal of Astrobiology 8:183-186.
293. Thomas, B. and Honeyman, M. (2008) Amphibian nitrate stress as an additional terrestrial threat from astrophysical ionizing radiation events? Astrobiology 8:731-733.
294. Thomas, B. and Melott, A. (2006) Gamma-ray bursts and terrestrial planetary atmospheres. New J Phys 8, doi:10.1088/ 1367-2630/8/7/120.
295. Thomas, B., Jackman, C., and Melott, A. (2007) Modeling atmospheric effects of the September 1859 solar flare. Geophys Res Lett 34:L06810.
296. Thomas, B., Melott, A., Fields, B., and Anthony-Twarog, B. (2008) Superluminous supernovae: no threat from g-Carinae. Astrobiology 8:9-16.
297. Thomas, B.C., Jackman, C.H., Melott, A.L., Laird, C.M., Stolarski, R.S., Gehrels, N., Cannizzo, J.K., and Hogan, D.P. (2005a) Terrestrial ozone depletion due to a Milky Way gamma-ray burst. Astrophys J 622:L153-L156. (Pubitemid 40758396)
298. Thomas, B.C, Melott, A., Jackman, C., Laird, C., Medvedev, M., Stolarski, R., Gehrels, N., Cannizzo, J., Hogan, D., and Ejzak, L. (2005b) Gamma-ray bursts and the Earth: exploration of atmospheric, biological, climatic, and biogeochemical effects. Astrophys J 634:509-533. (Pubitemid 41803253)
299. Thompson, D., Wilson, P., Sims, M., Cullen, D., Holt, J., Parker, D., and Smith, M. (2006) Preliminary investigation of proton and helium ion radiation effects on fluorescent dyes for use in astrobiology applications. Anal Chem 78: 2738-2743.
300. Thorsett, S.E. (1995) Terrestrial implications of cosmological gamma-ray burst models. Astrophys J 444:L53-L55.
301. Todd, P. (2003) Space radiation health: a brief primer. Gravit Space Biol Bull 16:1-4.
302. United States Committee on Extension to the Standard Atmosphere NOAA. (1976) U.S. Standard Atmosphere 1976, U.S. Government Printing Office, Washington DC. Available online at http://modelweb.gsfc.nasa.gov/atmos/us- standard.html.
303. Upadhyay, H. and Singh, R. (1995) Cosmic ray ionization of lower Venus atmosphere. Adv Space Res 15:99-108.
304. Upadhyay, H., Singh, R., and Singh, R. (1994) Cosmic ray ionization of the lower Venus atmosphere. Earth Moon Planets 65:89-94.
305. Usoskin, I.G. and Kovaltsov, G.A. (2006) Cosmic ray induced ionization in the atmosphere: full modeling and practical applications. J Geophys Res 111, doi:10.1029/2006JD007150. (Pubitemid 46978600)
306. Usoskin, I., Desorgher, L., Velinov, P., Storini, M., Flückiger, E., Bütikofer, R., and Kovaltsov, G. (2009) Ionization of the Earth's atmosphere by solar and galactic cosmic rays. Acta Geophysica 57:88-101.
307. Vainio, R., Desorgher, L., Heynderickx, D., Storini, M., Flückiger, E., Horne, R., Kovaltsov, G., Kudela, K., Laurenza, M., McKenna-Lawlor, S., Rothkaehl, H., and Usoskin, I. (2009) Dynamics of the Earth's particle radiation environment. Space Sci Rev 147:187-231.
308. Valtonen, M., Nurmi, P., Zheng, J.-Q., Cucinotta, F.A., Wilson, J.W., Horneck, G., Lindegren, L., Melosh, J., Rickman, H., and Mileikowsky, C. (2009) Natural transfer of viable microbes in space from planets in extra-solar systems to a planet in our solar system and vice versa. Astrophys J 690:210.
309. van Dishoeck, E. and Blake, G. (2003) Chemical evolution of starforming regions. Annu Rev Astron Astrophys 36:317-368.
310. Van Allen, J. (1959) The geomagnetically trapped corpuscular radiation. J Geophys Res 64:1683-1689.
311. Vangioni-Flam, E. and Casse, M. (2000) LiBeB production and associated astrophysical sites. In The Light Elements and their Evolution, IAU Symposium 198, edited by L. da Silva, M. Spite, and R. de Medeiros, pp 1-10.
312. Vasilyev, G., Ostryakov, V., and Pavlov, A. (2008) Influence of energetic particles on atmospheric ionization. Journal of Atmospheric and Solar-Terrestrial Physics 70:2000-2004.
313. Vietri, M., Marco, D.D., and Guetta, D. (2003) On the generation of ultra-high-energy cosmic rays in gamma-ray bursts: a reappraisal. Astrophys J 592:378.
314. Vitousek, P. and Howarth, R. (1991) Nitrogen limitation on land and in the sea: How can it occur? Biogeochemistry 13:87-115.
315. Vuitton, V., Lavvas, P., Yelle, R., Galand, M., Wellbrock, A., Lewis, G., Coates, A., and Wahlund, J. (2009) Negative ion chemistry in Titan's upper atmosphere. Planet Space Sci 57: 1558-1572.
316. Wackett, L., Dodge, A., and Ellis, L. (2004) Microbial genomics and the periodic table. Appl Environ Microbiol 70:647-655. (Pubitemid 38568183)
317. Wahlund, J.-E., Boström, R., Gustafsson, G., Gurnett, D., Kurth, W., Pedersen, A., Averkamp, T., Hospodarsky, G., Persoon, A., Canu, P., Neubauer, F., Dougherty, M., Eriksson, A., Morooka, M., Gill, R., André, M., Eliasson, L., and Müller-Wodarg, I. (2005) Cassini measurements of cold plasma in the ionosphere of Titan. Science 308:986-989. (Pubitemid 40664401)
318. Waite, J., Jr., Young, D., and Cravens, T. (2007) The process of tholin formation in Titan's upper atmosphere. Science 870: 870-875. (Pubitemid 46764273)
319. Webber, W. and Intriligator, D. (2011) Voyagers 1 and 2 in a shrunken and squashed heliosphere. J Geophys Res 116, doi:10.1029/2011JA016478.
320. Wells, L.E., Armstrong, J.C., and Gonzalez, G. (2003) Reseeding of early Earth by impacts of returning ejecta during the Late Heavy Bombardment. Icarus 162:38-46. (Pubitemid 36412356)
321. White, S., Chave, A., and Reynolds, G. (2002) Investigations of ambient light emission at deep-sea hydrothermal vents. J Geophys Res 107:1-13.
322. Whitten, R., Cuzzi, J., Borucki, W.J., and Wolfe, J.H. (1976) Effect of nearby supernova explosions on atmospheric ozone. Nature 263:398-400.
323. Williams, D. and Herbst, E. (2002) It's a dusty Universe: surface science in space. Surf Sci 500:823-837. (Pubitemid 34222926)
324. Wilson, E. and Atreya, S. (2004) Current state of modeling the photochemistry of Titan's mutually dependent atmosphere and ionosphere. J Geophys Res 109, doi:10.1029/2003JE002181. (Pubitemid 39169196)
325. Witasse, O., Cravens, T., Mendillo, M., Moses, J., Kliore, A., Nagy, A., and Breus, T. (2008) Solar system ionospheres. Space Sci Rev 139:235-265.
326. Yamazaki, T. and Oda, H. (2002) Orbital influence on Earth's magnetic field: 100,000-year periodicity in inclination. Science 295:2435-2438. (Pubitemid 34270254)
327. Yeghikyan, A. and Fahr, H. (2004a) Effects induced by the passage of the Sun through dense molecular clouds. Astron Astrophys 415:763-770.
328. Yeghikyan, A. and Fahr, H. (2004b) Terrestrial atmospheric effects induced by counterstreaming dense interstellar cloud material. Astron Astrophys 425:1113-1118.
329. Yelle, R.V., Strobell, D.F., Lellouch, E., and Gautier, D. (1997) Engineering models for Titan's atmosphere. In Huygens: Science, Payload and Mission, Proceedings of an ESA conference, ESA SP-1177, edited by A. Wilson, pp 243-256.
330. Yen, A., Kim, S., Hecht, M., Frant, M., and Murray, B. (2000) Evidence that the reactivity of the martian soil is due to superoxide ions. Science 289:1909-1912.
331. Zank, G. and Frisch, P. (1999) Consequences of a change in the galactic environment of the Sun. Astrophys J 518:965-973.
332. Zent, A.P. and McKay, C.P. (1994) The chemical reactivity of the martian soil and implications for future missions. Icarus 108:146-157.
333. Zetterström, L. (2000) Oklo: a review and critical evaluation of literature. Technical Report TR-00-17, Swedish Nuclear Fuel and Waste Management Co., Stockholm. Available online at http:// www.skb.se/upload/publications/pdf/ Tr-00-17webb.pdf.
334. Zhai, M. (1995) Boron cosmochemistry. Part II: Boron nucleosynthesis and condensation temperature. Meteoritics 30:733-737.
335. Zweibel, E.C. and Heiles, C. (1997) Magnetic fields in galaxies and beyond. Nature 385:131-136. (Pubitemid 27034208)