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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Astronomers who conducted one of the most thorough studies of the COSMOS survey – the largest survey ever undertaken by the NASA/ESA Hubble Space Telescope – compared the actual mass map obtained from COSMOS to two simulated model maps. The statistical properties of dark energy-dominated model (the number of mass peaks and how they cluster), is the best match for the actual COSMOS field.
The researchers have, for the first time ever, used Hubble and the natural ‘weak lenses’ in space to characterise the accelerated expansion of the Universe.