SAGA's goal is to demonstrate satellite-based quantum key distribution (QKD), which enables encryption keys to be transmitted securely over long distances. These quantum-generated keys automatically become invalid if intercepted, offering unprecedented protection against eavesdropping. By connecting to terrestrial quantum networks now emerging across EU Member States, SAGA will strengthen Europe's digital resilience and safeguard sensitive institutional and governmental information.
The project forms part of the European Quantum Communication Infrastructure (EuroQCI), a joint initiative of ESA and the European Commission. EuroQCI aims to build an integrated quantum-secure network spanning both ground and space, supporting key sectors including energy, healthcare, defence, and emergency response. Together, these efforts are set to become a cornerstone of Europe's future cybersecurity architecture.
The euro 50 million contract, announced during the Quantum Europe Forum in Brussels on October 1, supports technology development, system prototypes, and demonstrations essential for the satellite's design validation. The preliminary design review is planned within two years, after which ESA will move to the manufacturing stage. The contract was signed by Antonio Sturiale, Director of Domain Telecommunication Italy at Thales Alenia Space, and Laurent Jaffart, Director of Connectivity and Secure Communications at ESA, in the presence of Aymard de Touzalin, Head of Unit for Emerging and Disruptive Technologies at the European Commission's DG CNECT.
Unlike other ESA-led quantum missions such as EAGLE-1 and QKDSat, SAGA is designed to support classified and high-security data transmissions, including those vital to national and public safety operations.
"With SAGA, our aim is to ambitiously advance satellite communications, furthering Europe's digital sovereignty, cybersecurity and industrial competitiveness in the quantum era," said Laurent Jaffart. "We are delighted to strengthen our partnership with Thales Alenia Space, which puts our Member States at the forefront of the race for truly secure connectivity."
"I am very pleased that Thales Alenia Space will contribute to strengthening Europe's technological independence by advancing optical and quantum technologies," said Herve Derrey, CEO of Thales Alenia Space. "By leveraging its longstanding expertise in secure space communications and cutting-edge quantum technologies, Thales Alenia Space is proud to collaborate with ESA and multiple European space agencies for a secure and resilient connectivity infrastructure that will benefit governments and citizens alike, paving the way for the future of commercial optical communications both in Europe and worldwide."
Related Links
Connectivity and Secure Communications at ESA
Cyberwar - Internet Security News - Systems and Policy Issues
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