The brief
- Develops Ariane rockets and Copernicus Earth-observation satellites; participates in the International Space Station.
- Hera mission to asteroid Didymos measures how NASA's 2022 DART impact deflected it, validating planetary defence.
- Multinational agency with 23 European member states; 2026 budget €8.26 billion.
Technical approach
European launch capability
Ariane 5 has launched over 100 times. Ariane 6 made its debut in July 2024, offering lower costs and higher launch frequency than prior heavy-lift options.
Earth observation infrastructure
A constellation of Sentinel satellites offers free, open Earth data for climate, disaster response and environmental monitoring to all users.
Exploration and science missions
ESA leads missions to comets, asteroids and the Moon. Hera and ExoMars investigate planetary protection and the search for life.
Participated space station
ESA provides Columbus module, automated supply vehicle (ATV) and astronauts; shares ownership and operations costs.


