| Civil disobedience: Protest, justification and the law T Milligan Bloomsbury Publishing USA, 2013 | 72 | 2013 |
| The political turn in animal rights T Milligan Politics and animals 1, 6-15, 2015 | 70 | 2015 |
| Nobody owns the moon: The ethics of space exploitation T Milligan McFarland, 2014 | 39 | 2014 |
| The ethics of space exploration JSJ Schwartz, T Milligan Springer International Publishing, 2016 | 29 | 2016 |
| Beyond animal rights: Food, pets and ethics T Milligan Bloomsbury Publishing, 2010 | 25 | 2010 |
| Animal ethics: The basics T Milligan Routledge, 2015 | 23 | 2015 |
| Property rights and the duty to extend human life T Milligan Space Policy 27 (4), 190-193, 2011 | 21 | 2011 |
| The peaks of eternal light: A near-term property issue on the moon M Elvis, T Milligan, A Krolikowski Space Policy 38, 30-38, 2016 | 20 | 2016 |
| Speciesism as a Variety of Anthropocentrism T Milligan Anthropocentrism, 223-244, 2011 | 20 | 2011 |
| Dependent companions T Milligan Journal of Applied Philosophy 26 (4), 402-413, 2009 | 16 | 2009 |
| Murdochian humility T Milligan Religious Studies 43 (2), 217-228, 2007 | 14 | 2007 |
| How much of the Solar System should we leave as Wilderness? M Elvis, T Milligan Acta Astronautica 162, 574-580, 2019 | 12 | 2019 |
| Astrobiology and society in Europe today KA Capova, E Persson, T Milligan, D Dunér | 11 | 2018 |
| Common origins and the ethics of planetary seeding T Milligan International Journal of Astrobiology 15 (4), 301-306, 2016 | 11 | 2016 |
| Scratching the surface: The ethics of mining helium-3 T Milligan Procs of the 8th IAA Symposium on the Future of Space Exploration, 2013 | 11 | 2013 |
| Some ethical constraints on near-earth resource exploitation JSJ Schwartz, T Milligan Yearbook on Space Policy 2015, 227-239, 2017 | 10 | 2017 |
| Asteroid mining, integrity and containment T Milligan Commercial Space Exploration, 139-150, 2016 | 9 | 2016 |
| Rawlsian deliberation about space settlement T Milligan Human Governance Beyond Earth, 9-22, 2015 | 9 | 2015 |
| The Next Democracy?: The Possibility of Popular Control T Milligan Rowman & Littlefield, 2016 | 8 | 2016 |
| The duplication of love's reasons T Milligan Philosophical Explorations 16 (3), 315-323, 2013 | 8 | 2013 |
Martin ElvisHarvard-Smithsonian Center for AstrophysicsVerified email at cfa.harvard.edu
