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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For a quarter century, Ariane 5 has been Europe’s heavy-lift workhorse. Flying from Europe’s Spaceport in French Guiana, Ariane 5 has carried to space a long series of commercial and scientific missions. Notable payloads include ESA’s comet-chasing Rosetta, a dozen of Europe’s Galileo navigation satellites – orbited with just three launches – the NASA/ESA/CSA James Webb Space Telescope and, in April 2023, ESA’s Juice mission to Jupiter.
Ariane 5 more than doubled the mass-to-orbit capacity of its predecessor, Ariane 4, which flew from 1988 until 2003 as a favourite of the telecommunications industry with its need to put large payloads into very high geosynchronous orbits. Ariane 5’s capacity enabled it to orbit two large telecommunications satellites on a single launch, or to push very large payloads into deep space.
After 117 flights, Ariane 5 is being replaced by an all-new launch vehicle, Ariane 6.