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
Go to topicThank you for liking
You have already liked this page, you can only like it once!
Maggie Lieu is an ESAC research fellow working on Euclid, a visible and near-infrared space telescope due to launch in 2021. By measuring the shapes of distant galaxies we can determine the mass of the largest systems in the Universe, galaxy clusters. Euclid will achieve unprecedented shape measurements of galaxies covering almost half of the extragalactic sky.Maggie is developing statistical methods to deal with this upcoming big, noisy dataset, so that we can better understand the physics of galaxy clusters and their role in the Dark Universe.