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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Model of ESA's Exosat X-ray satellite with the Whirlpool Galaxy as a backdrop. On the front, from left to right, are two startrackers, the two low-energy imaging telescopes and the four quadrants of the medium-energy instrument. The gas scintillation proportional counter is visible to the right of the medium energy instrument. [Image Date: 01-03-81] [81.03.055-010]