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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Water is our most precious resource. Satellites gather critical information to understand and measure the processes driving the water cycle and the impact that climate change and human activity are having. They also allow us to monitor the changing shape of lakes, reservoirs and rivers, as well as monitor soil moisture and plant health to improve the efficiency of irrigation practices.