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 1000 x 2000 km area region of Tyrrhena Terra (outlined by the
white box in the inset) sits between two regions of low altitude – Hellas
Planitia and Isidis Planitia – in Mars’ southern hemisphere, as shown in this
global topography map. Hydrated minerals were found in 175 locations
associated with impact craters in Tyrrhena Terra, such as inside the walls of
craters, along crater rims, or in material excavated by the impact. Analysis
suggests that these minerals were formed in the presence of water that
persisted at depth for an extended period of time.