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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Probing the icy moons of Jupiter or Saturn offers the best chance to discover and study extra-terrestrial lifeforms that are currently active and evolving in the Solar System.
This artist's impression shows a concept for a future ocean world explorer.
Find out more about ESA's ambitions to visit an icy moon of Jupiter or Saturn
[Image description: In the foreground is a grey icy surface, with a small spacecraft stood on the surface. In the background on the right is the planet Saturn. At the top left is an orbiting spacecraft. The surface spacecraft, orbiting spacecraft and Saturn are all partly drawn with blue lines, indicating that they are a future concept.]