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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The BepiColombo Mercury Transfer Module and Mercury Planetary Orbiter being prepared for chemical propulsion fueling.
The transfer module will use both ion propulsion and chemical propulsion, in combination with gravity assist flybys at Earth, Venus and Mercury to bring the two science orbiters close enough to Mercury to be gravitationally captured into its orbit. There, ESA’s Mercury Planetary Orbiter will use its small thrusters to deliver JAXA’s Mercury Magnetospheric Orbiter into its elliptical orbit around Mercury, before separating and descending to its own orbit closer to the planet.