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 22 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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In the top image, we see the mean surface deformation velocity of the Bay of Naples, computed using Envisat radar data acquired in 2002–10. The lower image shows deformation over the same area based on Sentinel-1A data relevant to 2014–15.
By comparing the two maps based on data from two different satellites, the drastic improvement of the point density obtained through the InSAR analysis exploiting Sentinel-1A data is evident.