Photo of the full-size model of Ariane 5 at the Paris Air Show – © Michel Petit https://www.flickr.com/photos/couscouschocolat/5873411761/in/photostream/

The SIRIUS Chair is the first international research chair dedicated to the law and management of activities in the space sector

SIRIUS deals with the entire range of regulatory, institutional, economic and management issues raised by the generalization of the social uses of satellites, the opening up of space activities to the competition and the development of commercial applications of space technologies. This is a new approach to space activities, focusing on the latest trends and resolutely oriented toward addressing the needs of industry.


Publication of the new activity report of the SIRIUS Chair.

The latest activity report of the SIRIUS Chair has just been published. It presents a summary of the work carried out over the 2017-2020 period.

Access the latest activity report.


Space Legaltech

Space Legaltech gathers in a unique web portal all of national laws as well as the latest news of spatial agencies. 

Discover the new portal, designed in cooperation with PWC.



The Spationary is a unique resource meant to be your entry door to the fascinating world of space law terminology and concepts. It provides its reader with a comprehensive and up-to-date source of information on both commercial developments and technological trends relevant to space law.

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New article: "Sustainable business financing and space activities: towards a sustainable space taxonomy".

In the aftermath of COP26, the SIRIUS Chair contributes to solving the environmental challenges of space, by presenting the first results of an ongoing study, unveiled on the occasion of the last IAC 2021 (International Astronautical Congress) which took place in Dubai. This article, co-authored by Lucien Rapp, Maria Rhimbassen and Maria Topka is entitled "Sustainable business financing and space activities: towards a sustainable space taxonomy".
Learn more ...

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The SIRIUS Chair at the International Astronautical Congress in Dubai (IAC2021).

Maria Lucas-Rhimbassen notably spoke on a Special Session on the theme "Laws colliding in space: mapping potential clashes between space law, commerce, antitrust and ethics and their solutions."

Find out more about the conference ...

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SFDI Conference "International Law and outer space".

The event took place on May 6-7, 2021, in Toulouse, with the support of the SIRIUS Chair and its partners. 

The conference proceedings as well as the videos of the different presentations (in French) are now available online :  

Browse through the proceedings
Watch the conference videos

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New article published in "The Space Review"

Lucien and Paul Rapp write an article entitled "Financing space-derived data as commodities" which deals with the development of a service industry using data from space.

Find out more...



for their respective Master thesis entitled "Contribution of in-orbit servicing on space sustainability "and "Which economic value is in the lunar economy?"

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Our researcher joined the panel to share ideas on the new space with Airbus, Thales and international experts in Bangkok in March 2023.

Nonthapat PULSIRI from the SIRIUS Chair will be moderating two panel discussions at the 'New Space Economy' conference in Thailand to discuss the global aerospace value chain and space applications for sustainable Earth.


Discover Sirius


The mission of the SIRIUS Chair is to build up a pool of skills in law and management at the service of the European Space industry.

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The activities of the SIRIUS Chair revolve around three main axes: Research (theses, dissertations, articles, notes and books), Training (teaching and seminars), Dissemination and Promotion (Colloquia, Communications, Conferences).

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The SIRIUS Chair team is made up of professors, doctoral students and research assistants. It brings together law and management experts.

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The SIRIUS Chair is based in Toulouse, in the heart of the European capital of the aerospace sector. It has established a prestigious academic and institutional network in France and internationally.

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research topics

Current Research Topics

The SIRIUS Chair favors a "micro" approach as opposed to a "macro" approach. Its work focuses on space companies and the space industrial ecosystem, which is not incompatible with a reflection on the international governance of space activities and its current shortcomings. We use to call on the complementary skills, particularly technical, that we need from the laboratories of the Toulouse university site, as needed.

  • Deep tech and disruptive space technologies
  • Space activities market
  • Strategies of companies in the space sector
  • Corporate financing and space project financing
  • International Governance of Space and Space Activities
  • Space laws and regulations
  • Space policies and international cooperation
  • Economic impact of the space industry
  • Space, Debris and Climate
  • Resources and commercial exploitation of space
  • Space insurance
  • Space exploration and expeditions
  • Space contracts
  • International Space Treaties, Multilateralism and the Principle of Reciprocity
  • Sector and space industries

Upcoming events





Aéromart Toulouse - TALK BY LUCIEN RAPP "Global Space Industry Foresight".


SIRIUS Space Talks’20

Pacman Space Games: Is the US deal flow wave to cross over the Ocean ?

Free webinar (mandatory registration)

L'espace extra-atmosphérique et le droit international. Colloque Annuel de la Société Française pour le Droit International.

Université Toulouse 1 Capitole