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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Saturn's moon Iapetus, showing the curious 20 km-wide topographic ridge that coincides almost exactly with the geographic equator.
Four images create this view, taken by Cassini on 31 December 2004 from a distance of about 172 400 km. The image scale is 1 km/pixel. More information.
The Cassini-Huygens mission is a cooperative project of NASA, ESA and the Italian Space Agency.