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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ESA’s Gaia space telescope revolutionises our understanding of the Milky Way. It scans the sky to measure the position, movement, distance, and characteristics of billions of stars. It is creating the most precise map of our home galaxy yet, providing clues to its origin and evolution. Gaia not only studies the stars, but also what is in between them, as well as asteroids and planetary moons in our Solar System, binary stars and exoplanets, and quasars and galaxies outside of the Milky Way. Gaia provides us with a wealth of data, giving us a new sense of our place in the Universe.
Gaia’s data release 3 will be made public on 13 June 2022: https://www.cosmos.esa.int/web/gaia/data-release-3