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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Auroral displays over Canada pictured from the International Space Station from an altitude of 400 kilometres. The Manicouagan impact crater is visible in the foreground.
Thanks to observations performed in 2001 and 2002, ESA’s Cluster mission has established that high-speed flows of electrified gas, known as bursty bulk flows, in the Earth’s magnetic field are the carriers of decisive amounts of mass, energy and magnetic perturbation towards the Earth during magnetic substorms. When substorms occur, energetic particles strike our atmosphere, causing auroras to shine.