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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Example of data collected by the ExoMars Trace Gas Orbiter’s Fine Resolution Epithermal Neutron Detector (FREND), showing the flux of fast neutrons measured by the instrument. The graph shows an average of all the measurements around the closest approach to the planet along six recent orbits. The result shows a simple demonstration that there is a clear increase in count rate when close to Mars compared to farther away.