The Outer Space Institute

For the sustainable development of Space


To view all researched articles, open letters, public communications and more, visit the Documents and Press page.

  • "Who Owns Outer Space? International Law, Astrophysics, and the Sustainable Development of Space" by Michael Byers and Aaron Boley is now available with open access via Cambridge University Press. From an interdisciplinary perspective, this book covers fundamental challenges to the sustainable use and exploration of space, including mega-constellations, ASAT weapons, space mining, space tourism, and more!
  • As part of the 2023 IAA Planetary Defence Conference, the OSI has developed a Preliminary Planetary Defence Decision Tree to aid decision makers in thinking about critical decision points that exist before and during a planetary defence emergency. The Decision Tree can be found: HERE. You can view a supporting supplemental document to the Decision Tree: HERE. An html overview of the Decision Tree is available: HERE. The Decision Tree is a work in progress, and so we encourage you to submit any feedback via this form: Preliminary Planetary Defence Decision Tree (Feedback).
  • The OSI is also pleased to release the Montreal Recommendations on Aviation Safety and Uncontrolled Space Object Reentries, the product of a joint workshop in February held by the OSI, McGill Institute of Air and Space Law (IASL), and the International Association for the Advancement of Space Safety (IAASS).
  • Who We Are

    The Outer Space Institute (OSI) is a network of world-leading space experts united by their commitment to highly innovative, transdisciplinary research that addresses grand challenges facing the continued use and exploration of space. Comprised of physical scientists, social scientists, lawyers, engineers, industry leaders, and policy makers, there is no other body like it anywhere. The transdisciplinary approach enables the OSI to identify challenges, opportunities, and solutions that have been overlooked by other groups. By breaking down barriers that prevent people in different fields from working together, the OSI is able to further challenge assumptions that are often taken for granted in building public policy.

    Media Contacts

    Please visit our Contact Request page for information on how to reach OSI Fellows with requests for interviews or commentary.