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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Smile will study Earth’s magnetic environment (its magnetosphere) on a global scale, building a more complete understanding of the Sun-Earth connection. It will do this using four instruments that together observe the flow of charged particles streaming out from the Sun into interplanetary space (the solar wind) and explore how these interact with the space around our planet.