Andersen, S (2007) In the eyes of a Lutheran philosopher: how Løgstrup treated moral thinkers. In Andersen, S and van Kooten Niekerk, K (eds). Concern for the Other: Perspectives on the Ethics of K.E. Løgstrup. Notre Dame, IN: University of Notre Dame Press, pp. 1–8.
Arnhart, L (2005) Evolutionary ethics. In Mitcham, C (ed.). Encyclopedia of Science, Technology, and Ethics, vol. 4. New York: Macmillan, Thomson Gale, 2, 715–720.
Arnould, J (2005) The emergence of the ethics of space: the case of the French space agency. Futures 37, 245–254.
Arnould, J (2011) Icarus’ Second Chance: The Basis and Perspectives of Space Ethics. Heidelberg: Springer.
Cho, F (2007) An Asian religious perspective on exploring the origin, extent and future of life. In Bertka, C, Roth, N and Shindell, M (eds). Workshop Report: Philosophical, Ethical, and Theological Implications of Astrobiology. Washington, DC: AAAS, pp. 208–218.
Chon-Torres, O (2017) Astrobioethics. International Journal of Astrobiology 16(2), 1–6. doi: 10.1017/S1473550417000064.
Cleland, CE and Wilson, EM (2013) Lessons from earth: toward and ethics of astrobiology. In Impey, C, Spitz, AH and Stoeger, W (eds). Encountering Life in the Universe. Tucson: University of Arizona Press, pp. 17–55.
Cockell, CS (2016) The ethical status of microbial life on earth and Elsewhere: in defense of intrinsic value. In Schwartz, JSJ and Milligan, T (eds). The Ethics of Space Exploration. Heidelberg: Springer, pp. 167–180.
Conley, CA (2014) Life guard: an interview with Catharine Conley. Scientific American 311(4), 30.
COSPAR Workshop on Ethical Considerations for Protection in Space Exploration, Princeton University, Princeton, NJ, 8–10, 2010.
Fink, H (2007) The conception of ethics and the Ethical in K.E. Løgstrup's the ethical demand. In Andersen, S and van Kooten Niekerk, K (eds). Concern for the Other: Perspectives on the Ethics of K.E. Løgstrup. Notre Dame, IN: University of Notre Dame Press, 9–28.
Hefner, P (1993) The Human Factor. Minneapolis: Fortress Press.
Heidegger, M (1962) Being and Time, tr. John Macquarrie and Edward Robinson. New York: Harper.
Hester, J (2017) The hermeneutics of bunk. Astronomy 45, 7 (July) 14.
Höffe, O (2010) Can Virtue Make us Happy? Tr. McGauhey, Douglas R. and Bunch, Aaron. Evanston IL: Northwestern University Press.
Johnson, EA (2014). Ask the Beasts: Darwin and the God of Love. London: Bloomsbury.
Jonas, H (1984) The Imperative of Responsibility: In Search of an Ethics for the Technological Age. Chicago: University of Chicago Press.
Jonas, H (1966, 2001) The Phenomenon of Life: Toward A Philosophical Biology. Evanston IL: Northwestern University Press.
Kauffman, SA (2008) Reinventing the Sacred: A New View of Science, Reason, and Religion. New York: Basic Books.
Levinas, E (1998) Otherwise Than Being, or, Beyond Essence. Tr., Alphopnso Lingis. Pittsburgh: Duquesne University Press.
Løgstrup, KE (1997) The Ethical Demand. Notre Dame, IN: University of Notre Dame Press.
Lupisella, M (2016) “Cosmological theories of value: relationalism and connectedness as foundations for cosmic creativity. In Schwartz JSJ and Milligan T (eds). The Ethics of Space Exploration. Heidelberg: Springer, pp. 75–92.
McKay, CP (2007) Planetary ecosynthesis on Mars: restoration ecology and environmental ethics. In Sullivan, WT III and Baross, JA (eds). Exploring the Origin of Astrobiology. Cambridge, UK: Cambridge University Press, 245–260.
McKay, CP (2013) Astrobiology and science: the long view. In Impey, C, Spitz, AH and Stoeger, W (eds). Encountering Life in the Universe. Tucson: University of Arizona Press, 158–166.
Mitcham, C (2005) Responsibility: overview. In Mitcham, C (ed.). Encyclopedia of Science, Technology, and Ethics, vol. 4. New York: Macmillan/Thomson Gale, 3, 1609–1616.
Moore, GE (1903) Principia Ethica. Cambridge, UK: Cambridge University Press.
Morris, T (2013) Hans Jonas’ Ethic of Responsibility: From Ontology to Ecology. Albany, NY: SUNY.
Persson, E (2012) The moral status of extraterrestrial life. Astrobiology 12(10), 976–985.
Peters, T (2013) Astroethics: engaging extraterrestrial intelligent life-forms. In Impey, C, Spitz, AH and Stoeger, W (ed.). Encountering Life in the Universe. Tucson: University of Arizona Press, pp. 200–221.
Peters, T (2014) Intelligent aliens and astroethics. In Arnould, J (ed.). Space Exploration and ET: Who Goes There? Adelaide, Australia: ATF Press, pp. 1–20.
Peters, T (2017) Universal humanity, religious particularity, and scientific reductionism. In Tibayrenc M, and Ayala, FJ (eds). On Human Nature: Biology, Psychology, Ethics, Politics, and Religion. Amsterdam: Elsevier, pp. 686–694.
Pope, SJ (2007) Human Evolution and Christian Ethics. Cambridge, UK: Cambridge University.
Race, MS (2013) Space exploration and searches for extraterrestrial life: decision making and societal issues. In Impey, C, Spitz, AH and Stoeger, W (eds). Encountering Life in the Universe. Tucson: University of Arizona Press, pp. 141–156.
Race, MS and Randolph, RO (2002) The need for operating guidelines and a decision making framework applicable to the discovery of Non-intelligent extraterrestrial life. Advances in Space Research 30(6), 1583–9151. http://www.seti.org/pdfs/m_race_guidelines.pdf. Race, MS and Randolph, RO (2007), Societal and ethical concerns. In Sullivan, WT III and Baross, JA (eds). Planets and Life: The Emerging Science of Astrobiology. Cambridge UK: Cambridge University Press, pp. 483–497.
Randolph, RO (2009) God's preferential option for life: a Christian perspective. In Bertka, CM (ed.). Exploring the Origin, Extent, and Future of Life: Philosophical, Ethical, and Theological Perspectives. Cambridge, UK: Cambridge University Press, pp. 281–302.
Randolph, RO and McKay, CP (2014) Protecting and expanding the richness and diversity of life, An ethic for astrobiology research and space exploration. International Journal of Astrobiology 13(1), 28–34.
Schwarz, JSJ and Milligan, T (2016) Introduction: the scope and content of space ethics. In Schwartz JSJ and Milligan T (eds). The Ethics of Space Exploration. Heidelberg: Springer, pp. 1–14.
Schweiker, W (2016) Humanity and the global future. Journal of the Society of Christian Ethics 36, 2 (Fall/Winter) 3–24.
Tyson, ND (2017) Astrophysics for People in a Hurry. New York: W.W. Norton.
UN (1967). United Nations Office for Outer Space Affairs, Treaty on Principles Governing the Activities of States in the Exploration and Use of Outer Space, Including the Moon and Other Celestial Bodies. http://www.unoosa.org/oosa/SpaceLaw/outerspt.html (accessed 30 December 2008). Wolf-Chase, G (2012) Astronomy: from star gazing to astrobiology. In Haag, JW, Peterson, GR and Spezio, ML (eds). The Routledge Companion to Religion and Science. London: Routledge, pp. 103–112.
Young, S (2006) Designer Evolution: A Transhumanist Manifesto. Amherst, NY: Prometheus Books.
