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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Integration von Rosettas Philae-Lander am niederländischen ESTEC-Zentrum der ESA. Das torusförmige Bauteil im Vordergrund ist der Tank von Philaes Triebwerk, ein sogenannter Kaltgas-Schubantrieb. Der Tank enthält 3,3 Liter gasförmigen Stickstoff. Maximal erzeugt das Triebwerk einen Schub von 17 Newton, beim Bodenkontakt mit dem Kometenkern soll es das Landegerät fest gegen die Oberfläche drücken.