The PRELUDE mission marks a transformative milestone for European space operations, serving as a pivotal step in validating critical technologies for in-orbit life extension and active debris removal (ADR). Driven by the collaboration between ClearSpace and the European Space Agency (ESA) Space Safety Programme, this mission represents the culmination of years of joint innovation. PRELUDE launches a new era of responsible, high-impact space activities, focused on rapid deployment, shared expertise, and open progress, setting the stage for safer and more sustainable operations in orbit.

The mission will put cutting-edge space manoeuvres and relative navigation technologies to the test in real-life conditions. The two small spacecraft will be working together in orbit, carrying out complex manoeuvres. They’ll use highly accurate tracking and clever navigation systems that combine sensors and cameras, allowing them to move with complete freedom in every direction. By proving these technologies work in practice, the mission is paving the way for future space tasks like extending, removing, or even fixing satellites. This is a key step towards keeping space safer and tidier for everyone.

Targeting a launch to orbit in 2027, the PRELUDE mission places a strong emphasis on swift and agile execution, with a clear focus on reducing risks at every stage of development. By prioritising rapid delivery and accelerated demonstration of safe close-proximity operations, PRELUDE aims to showcase how effective collaboration and streamlined processes can lead to tangible advances in space safety. This approach underlines Europe’s commitment to not only advancing technology but also ensuring that operational excellence and safety standards are met without delay.

“This mission shows how European partnerships can effectively demonstrate breakthrough technology in orbit and turn ambition into action,” said Tiago Soares, Head of ESA’s Clean Space and Circular Economy Office. “It reinforces Europe’s leadership in sustainable and safe space operations, and paves the way for commercially viable in-orbit services.”

For ClearSpace, this effort represents both continuity and evolution. Building on the experience and lessons from the ongoing ClearSpace-1 debris-removal mission, the company continues to demonstrate the persistence and agility that define Europe’s New Space movement by advancing as a trusted industrial partner for ESA and national agencies.

“Our technologies are moving from development to delivery,” said Luc Piguet, CEO of ClearSpace. “This marks a tangible step toward making safe and sustainable operations part of everyday space activity.”

Designed as a civil initiative, the mission highlights Europe’s ability to innovate through openness and cooperation. Its modular architecture invites participation from additional partners across industry and academia, ensuring broad European engagement and future commercial scalability. Within a year of completion, it is expected to enable a recurring in-orbit inspection service, a direct bridge from demonstration to operational reality.

This marks a quiet but decisive milestone for Europe: responsible space operations are no longer theoretical but are being realised through collaboration, precision, and trust.

Click here to learn more about ClearSpace's PRELUDE mission