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 left image shows a view of the Marwth Vallis region of Mars, as seen by NASA Mars Global Surveyor’s MOLA instrument. The OMEGA instrument on board ESA’s Mars Express has mapped hydrated sites in this area, as shown in the right image (OMEGA data superimposed on the MOLA map). The hydrated minerals are not found in the channel (blue arrow) as one would expect, but in the eroded flanks and the cratered plateau (red arrow).