The European Space Agency’s (ESA) PLATO mission has reached a major milestone on its journey toward space. The space telescope, built for some of the most precise exoplanet research conducted, has entered a phase of space‑like environmental testing to ensure its readiness for the upcoming launch.
The goal of the PLATO mission is to determine whether there are Earth‑like planets elsewhere in the universe. As part of ESA’s Cosmic Vision programme, PLATO aims to identify and characterize planets orbiting Sun‑like stars. By measuring key properties such as planetary radius, mass, and age, along with those of their host stars, the mission seeks to deepen our understanding of planetary systems. PLATO aims to address one of humanity’s most fundamental questions: is there another Earth?
Gofore’s subsidiary Huld Oy has been involved in the development of the PLATO mission for several years, contributing to the development of the spacecraft’s control software. Work continues as the mission prepares for its planned launch in early 2027.
Critical testing underway
In spring 2026, the PLATO space telescope was transferred to ESA’s test facilities, where it has been placed inside Europe’s largest space‑simulation chamber. During the tests, the spacecraft is exposed to extreme conditions replicating the vacuum, temperatures, and radiation of space.
The testing phase ensures that all PLATO systems, including its 26 sensitive cameras, operate reliably ahead of launch. This is one of the most critical stages of the mission before entering the final preparation phase.
Control software plays a key role in mission success
In a space mission such as PLATO, software plays a crucial role. The telescope must be able to operate autonomously, safely, and reliably millions of kilometres from Earth.
Our experts are contributing to the development of PLATO’s control software, which governs system logic, operational modes, and responses to unexpected situations. The work emphasizes high quality, predictability, and the rigorous requirements of safety‑critical systems. These principles are now also being validated through the space‑like testing.
“Reaching this stage has been a long and rewarding journey. As the launch date approaches, our focus is on finalising the software and ensuring everything is ready for a successful launch”, says Project Manager Jussi Johansson.
Towards final integration and launch
Once the space‑environment tests are completed, PLATO will move into its final integration and acceptance phases. The objective is to have the satellite ready for launch in early 2027, when it will begin its journey to the Sun–Earth Lagrange point and embark on its long‑term scientific mission to discover exoplanets.
PLATO will observe hundreds of thousands of stars simultaneously, producing precise data on Earth‑like planets and the stars they orbit.
Learn more about PLATO mission
Gofore’s experts have decades of experience in the space industry and over 150 projects carried out with the European Space Agency (ESA). Our solutions combine artificial intelligence, quality management and mechanical design, including dual-use applications.