Session 3 : Theories of justice and outer space

The 3rd session, which took place on Monday 24 March 2025, explored Axis 2 of the Space Chair’s research, dedicated to the question: How can we reconcile space as a common good and space as an issue of sovereignty?

Three researchers shared their work:

Camille Ternier, a doctor of philosophy and post-doc at the ENS Espace Chair, who is working on the merits of the concept of space as a common good. She analyses the philosophical arguments at the heart of the legal and political justifications that make Space and its resources goods that can be appropriated by private organisations, or on the contrary, that make them suitable for common governance.

Title of presentation: ‘The market assaults space. The case of space resource extraction’.

Pierre André has a doctorate in philosophy and is currently a lecturer at the Hoover Chair in Economic and Social Ethics at the University of Louvain. His research focuses on climate justice.

Dominic Roser is Senior Lecturer at the Interdisciplinary Institute of Ethics and Human Rights at the University of Fribourg.

They shared their thoughts on the moral permissibility of human activities in space in the light of theories of justice.

Title of their presentation: ‘Space Activity for the Worst-Off?