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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The Sentinel-1 mission comprises two satellites orbiting Earth 180° apart. Working together, they offer global revisit every six days. The satellites carry an advanced radar instrument to image Earth’s surface through cloud and rain, and regardless of whether it is day or night. As such, they will deliver timely information for numerous Copernicus services, from monitoring ice in polar oceans to tracking land subsidence. The mission is also designed specifically for fast response to aid emergencies and disasters such as flooding and earthquakes.