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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Hispasat-AG1's Europe reflector antenna mounted on ground segment equipment in preparation for acoustic tests in the Large European Acoustic Facility (LEAF), at ESA's test centre in Noordwijk, the Netherlands.
The LEAF, measuring 11 x 9 x 16.4 m, simulates realistic spectral noise pressure levels comparable to those generated by the launcher engines and air flow passing along the launcher fairing. The noise generation system consists of four different horns with cut-off frequencies of 25 Hz, 35 Hz, 80 Hz and 160 Hz plus three high-frequency generators.
European Test Services operates ESTEC's Test Centre.