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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Original and 3D-printed version of the water on-off valve (Woov) flown aboard ESA's Columbus module attached to ISS. Originally made in stainless steel with a single weld and thin walls, the Additive Manufacturing demonstration version was instead manufactured in titanium with a 40% mass reduction.