The European Space Agency (ESA) is Europe’s gateway to space. Its mission is to shape the development of Europe’s space capability and ensure that investment in space continues to deliver benefits to the citizens of Europe and the world.
Find out more about space activities in our 23 Member States, and understand how ESA works together with their national agencies, institutions and organisations.
Exploring our Solar System and unlocking the secrets of the Universe
Go to topicProtecting life and infrastructure on Earth and in orbit
Go to topicUsing space to benefit citizens and meet future challenges on Earth
Go to topicMaking space accessible and developing the technologies for the future
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Arnaud Prost was selected as a member of the ESA Astronaut Reserve in November 2022. He began his Astronaut Reserve training at the European Astronaut Centre (EAC) near Cologne, Germany, on 28 October 2024. The programme includes selected modules of ESA’s one-year basic training, typically completed by career astronauts, and equips members of the astronaut reserve with the skills needed to support Europe’s future space exploration and scientific research. Training covers technical and operational skills, spacecraft systems, survival exercises in water and winter conditions, as well as initial spacewalk training.