Ireland's pioneering space venture, the EIRSAT-1 satellite, has successfully completed its operational tenure and undergone a controlled deorbit, marking a pivotal moment for the nation's burgeoning space sector. This achievement underscores Ireland's growing capabilities and contributions to space research and technology.
Developed through a collaborative effort between students and staff at University College Dublin (UCD) and supported by the European Space Agency's (ESA) Fly Your Satellite! program, EIRSAT-1 was launched into orbit on December 1, 2023, aboard a SpaceX Falcon 9 rocket from Vandenberg Space Force Base in California. The mission was a testament to the dedication and ingenuity of the Irish academic and research community.
During its time in orbit, EIRSAT-1 was instrumental in conducting three key scientific experiments. The Gamma-Ray Module (GMOD) observed gamma-ray bursts, cosmic events of immense energy, successfully detecting 10 such events and two solar flares. The Enbio Module (EMOD) evaluated the performance of thermal surface treatments for satellites in the harsh environment of space. Complementing these, the Wave-Based Control (WBC) system was tested to assess novel methods for satellite attitude adjustment and stabilization, demonstrating its potential for advanced satellite orientation control.
The satellite transmitted its final signals on September 4, 2025, before safely re-entering Earth's atmosphere and disintegrating, a process aligned with ESA's commitment to sustainable space practices. Professor Lorraine Hanlon of UCD's Centre for Space Research expressed pride in the team's accomplishments, noting that while the mission's end is a poignant moment, the achievement of all its goals brings immense satisfaction and a strong foundation for future endeavors.
The success of EIRSAT-1 is a powerful indicator of Ireland's expanding role in the global space economy. The project has not only advanced scientific understanding but has also fostered significant educational and industrial growth. Over 50 students were directly involved in the mission, gaining invaluable hands-on experience. Furthermore, the project has spurred further investment, with UCD launching initiatives like the National Space Subsystems and Payloads Initiative (NSSPI), backed by over €7.9 million in funding. This success story also highlights the broader impact of Ireland's engagement with the ESA, with 109 Irish companies actively participating in ESA projects by the end of 2023, securing significant contracts and driving innovation. The mission's outcomes have been shared through 24 academic journal and conference papers, disseminating the research and technological advancements made.