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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Thanks to the Montreal Protocol, over the last three decades much progress has been made in stopping damage to the ozone layer through restrictions on the use of certain chemicals in appliances such as refrigerators. However, while this atmospheric shield in the stratosphere, 15–30 km above Earth’s surface, is on the road to recovery, monitoring and understanding the processes involved are of the upmost importance.