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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What would you do with a powerful computer based in space? At just 30 cm in height, OPS-SAT is a tiny CubeSat designed to serve as a large-scale software laboratory in orbit – containing one of the most powerful flight computers ever flown – to test innovative control software from teams all over Europe. Anyone can apply to try out their software aboard OPS-SAT, from companies to research teams to computer clubs, linking directly from the internet. The small satellite packs in a high-resolution camera, radio antennas, optical receiver, reaction wheels and GPS. OPS-SAT can be rebooted if any experimental software crashes, allowing otherwise risky inflight testing as a way to make space smarter.