Rocket Lab to Launch Electron Mission for European Space Agency’s Next-Generation Navigation SystemJune 25, 2025Rocket Lab Corporation (Nasdaq: RKLB) (“Rocket Lab” or the “Company”), a global leader in launch services and space systems, today announced it has been selected to launch a dedicated Electron mission for the European Space Agency (“ESA”) for the first time, to deploy the first pair of satellites for a future navigation constellation for Europe, LEO-PNT. Rocket Lab will launch two “Pathfinder A” spacecraft for ESA, provided by European satellite prime contractors Thales Alenia Space and GMV, from Rocket Lab Launch Complex 1 no earlier than December 2025.The spacecraft will be deployed to a 510km low Earth orbit as part of a mission to test a new approach of providing location, direction, and timing services from satellites in low orbit – otherwise called LEO-PNT (Low Earth Orbit Positioning, Navigation, and Timing). ESA’s LEO-PNT demonstration mission will assess how a low Earth orbit fleet of satellites can work in combination with the Galileo and EGNOS constellations in higher orbits that provide Europe’s own global navigation system.[...]
ESA’s LEO-PNT satellites set to launch by end of year25/06/2025The European Space Agency (ESA) confirms the launch of the first two LEO-PNT satellites is planned from second half of December 2025, on a Rocket Lab Electron launcher vehicle, from New Zealand. The LEO-PNT in-orbit demonstrator mission is a pioneer mission for Europe that will advance satellite navigation concepts for resilient positioning and timing services.Approved at the ESA Council at Ministerial Level in 2022, ESA’s LEO-PNT (Low Earth Orbit Positioning Navigation and Timing) in-orbit demonstrator mission has been established to test the potential of a satellite navigation system in low Earth orbit and its contribution to a multi-layer navigation system.A 10-satellite constellation is being developed under two parallel contracts with GMV (Spain) and Thales Alenia Space (France) as prime contractors. The first two satellites of this constellation (one Pathfinder A per contract) have now secured a ride to low Earth orbit before the end of this year.The launch agreement between ESA, GMV, Thales Alenia Space and launch provider Rocket Lab was necessary to meet the scheduling requirements of the demonstrator mission. The dedicated launch with the Electron rocket will bring both satellites to their orbit at 510 km altitude. The satellites will be launched from the company’s site in New Zealand with a three month launch period starting mid-December.[...]
Following the announcement of the upcoming launch of LEO-PNT’s first satellites, ESA has now unveiled the name of the mission. Celeste, as it has been officially designated, will test the potential of a new, low Earth orbit layer of satellites to enhance Galileo’s resilience and complement its capabilities.Over the past three decades, European satellite navigation systems have become integral to our society. Galileo and EGNOS are a huge success today, powering everything from smartphones to critical infrastructure. Now, ESA’s Low Earth Orbit Positioning Navigation Timing (LEO-PNT) mission, Celeste, is working to ensure these systems remain robust, secure and available.Galileo and Celeste, a story of support and resilienceThe name Celeste is a symbolic wink to the scientific past on which satellite navigation is founded. Maria Celeste was Galileo Galilei’s daughter, and the two shared a strong emotional and intellectual bond. She also honoured her father’s love for astronomy. Based on historic letters between father and daughter, we know how much Galileo valued his daughter and trusted her judgement. Now, Celeste becomes the name of ESA’s LEO-PNT mission that will ‘mediate’ between Galileo and the rest of the world. The mission aims to demonstrate in orbit new capabilities for added resilience, representing a new dimension of strength for Europe’s navigation capabilities.Celeste features a constellation of ten satellites that will fly close to Earth to test innovative signals across various frequency bands. The first two Celeste satellites, built in parallel by GMV and Thales Alenia Space, are set to launch in the coming months.
ESA will soon launch the first two Celeste (LEO-PNT) In-Orbit Demonstrator (IOD) satellites to showcase the benefits of low Earth orbit satellites for positioning, navigation and timing (LEO-PNT), adding a powerful new multi-layer dimension to Europe’s satellite navigation. The proposed Celeste (LEO-PNT) In-Orbit Preparatory phase will focus on:maturing enabling technology building blocks (for example, integrated digital and RF modules and antennas, miniaturised clocks),driving industrialisation across Europe to boost future production and reduce cost,validating technologies through in-orbit experimentation.The ultimate objective is to prepare a LEO-PNT future operational system for the European Union that adds a new layer to the European PNT ecosystem, with Galileo at its core.In parallel, the programme aims to open new commercial opportunities worldwide, ultimately boosting innovation and European leadership for future market opportunities.
What comes next?The first two Celeste demonstrator satellites, scheduled to launch early next year, will secure and test the assigned frequencies during a six-month experimentation phase. Following a formal review of the results, ESA foresees to engage user communities and stakeholders in third-party experimentations to test the functionalities and demonstrate services capabilities in representative environments.Now that the funding for the preparatory phase has been secured, a dedicated Industry Day will be organised early next year to showcase the European PNT ecosystem, outline the new opportunities and present the ESA-EU coordinated roadmap. This will be followed by an invitation to tender for this phase’s industrial activities, focusing on the development of enabling technologies, industrialisation efforts, and the deployment of a set of in-orbit validation satellites.
