In an exchange of letters finalized on September 10, 2026, during the International Space Summit in Paris, the European Space Agency (ESA) and the Indian Space Research Organisation (ISRO) formally extended their overarching Cooperative Agreement through January 8, 2032.
Expanded Operational Framework
Originally signed in January 2002, the foundational agreement establishes administrative and technical mechanisms for data sharing, ground station tracking support, and joint mission execution. The updated framework retains its core provisions while expanding its operational scope to cover three targeted disciplines:
- Space Weather Monitoring: Joint tracking and data exchange models to forecast solar particle events and orbital radiation environments.
- Human and Robotic Exploration: Collaborative planning for deep-space missions and crewed exploration architectures, building on a 2025 Joint Statement of Intent.
- Space Sustainability: Alignment of technical practices and operational frameworks to mitigate orbital debris and address growing Low Earth Orbit (LEO) congestion.
Bilateral Alignment
The updated terms formalize ongoing technical support networks, including tracking services via ESA’s ESTRACK system and ISRO Telemetry, Tracking and Command Network (ISTRAC) facilities. The partnership previously enabled tracking support for ISRO’s Aditya-L1 solar observatory and Chandrayaan-3 lunar mission.
“The newly signed exchange of letters extends the Cooperative Agreement and updates its scope to reflect evolving priorities in the space sector,” stated ESA Director General Josef Aschbacher. “In addition to existing areas of cooperation, the agreement now includes space weather and human and robotic exploration, while also recognizing the growing importance of the sustainability of outer space activities.”
“The partnership between ISRO and ESA has delivered tangible benefits for India and Europe and has demonstrated the value of international cooperation in advancing space activities,” added ISRO Chairman Dr. V. Narayanan. “The renewal of this agreement reflects the shared ambition of ISRO and ESA to pursue innovation and scientific progress for the benefit of our societies.”
Strategic Direction
The extended agreement provides institutional backing as both agencies advance deep-space architectures. The inclusion of space sustainability protocols aims to harmonize orbital safety guidelines between European and Indian satellite operators through 2032.
