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Behind the scenes: Euclid Galactic Bulge Survey (Q2)

Consortium, ESA, People, Publication, Science, Telescope and instruments / By

On 23 March 2025, the Euclid space telescope targeted an unusual location: a region near the Galactic Centre, capturing an exceptionally deep, wide-field, and high-resolution view of the Milky Way’s inner bulge. Over roughly 24 hours, the telescope observed nine contiguous fields, covering a total of 4.8 square degrees, capturing the images of roughly 60 million stars in total. Now the images and catalogues are made public to the world – we take the opportunity to peek behind the curtain to see what makes this image so special and which challenges had to be overcome.

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Behind the scenes: Euclid Galactic Bulge Survey (Q2)Read More »

Behind the scenes: Euclid Galactic Bulge Survey (Q2) Read More »

Light and dark matter in Abell 2390

Euclid starts seeing darkness

Consortium, People, Publication, Science / By

Euclid‘s core mission to study the nature of dark energy includes two central probes: one is tracking the expansion history of the Universe, the other traces structure formation over cosmic time. Ahead of the first cosmology results coming out in 2027, scientists have now published a first demonstration that Euclid can indeed trace massive structures dominated by usually invisible dark matter, using the technique of ‘weak gravitational lensing’.

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Euclid starts seeing darknessRead More »

Euclid starts seeing darkness Read More »

Yannick Mellier, 1958–2025

Consortium, People / By

Au revoir Yannick! It is with greatest sadness that we have to announce the passing of Yannick Mellier, lead of the Euclid Consortium since 2011. Yannick has worked tirelessly to steer Euclid’s development from before its adoption as a mission by ESA to the first science results in 2025. Much of what the Consortium is today bears his mark – and the first flagship paper introducing the first Euclid science results is, and will be, a ‘Euclid Collaboration: Mellier et al.’

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Yannick Mellier, 1958–2025Read More »

Yannick Mellier, 1958–2025 Read More »

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