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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Examining the BepiColombo stack in ESA’s test centre. The people give a sense of the scale of the full spacecraft stack, which is more than 6 m high.
The Mercury Transfer Module is at the bottom, the Mercury Planetary Orbiter is in the middle, and the Mercury Magnetospheric Orbiter’s Sunshield and Interface Structure is the cone shape seen at the top (the Mercury Magnetospheric Orbiter sits inside during the cruise to Mercury).