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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Installing a corner reflector on sea ice, near Longyearbyen, Svalbard. The reflectors are essential to calibrate the airborne radar altimeters and provide a reference height to measure penetration of the Cryosat signal into the snow cover. Similar reflectors are installed at all main land sites during the validation campaigns.