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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Jupiter’s surrounding magnetic field forms the largest structure in the Solar System, nearly 15 times bigger than the Sun. If it were visible to the naked eye it would appear larger than the full Moon in the night sky. And, in the same way that Earth’s magnetosphere traps belts of radioactive particles – the Van Allen Belts – Jupiter has its own equivalent radiation belts around it, except these are thousands of times more intense than those surrounding our homeworld.