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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This is an artist's impression of ESA’s mission Ariel, Atmospheric Remote-sensing Infrared Exoplanet Large-survey, which will study the atmospheres of about a thousand planets around other stars. Ariel will study rocky planets and gas giants and discover the ingredients that make up their atmospheres. The mission will also study their clouds and monitor variations over time.