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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Scientists have concluded the checkout period for NASA’s Hubble Space Telescope and are now revealing images showcasing the power of the much-improved observatory. This zoom into the globular star cluster Omega Centauri converges onto the Hubble Wide Field Camera 3’s panoramic view of 100 000 stars lying in the centre of the cluster. The stars vary in age and change colour as they get older. Most of them are middle-aged, yellowish stars like our Sun. But as they near the end of their lives, they balloon into red giants, and later still, into hot, blue stars.