1. Defense of Veritistic Value Monism.;Pacific Philosophical Quarterly,2013
2. What Could COSPAR Do to Protect the Planetary and Space Environment?;Advances in Space Research,2002
3. Almár, Iván. 2010. New Concepts for an Advanced Planetary Protection Policy. In Protecting the Environment of Celestial Bodies, International Academy of Astronautics Cosmic Study, edited by Mahulena Hoffman, Petra Rettberg, and Mark Williamson, pp. 26–33. Available at: https://planetaryprotection.nasa.gov/file_download/57/PECBReport2010_IAAProtectingTheEnvmtOfCelestialBodies.pdf (accessed 10 July 2018).
4. Separation of Church and Space: Religious Influences on Public Support for U.S. Space Exploration Policy.;Space Policy,2015