Science – Euclid Consortium

Jun 5 2026

Euclid starts seeing darkness

Consortium, People, Publication, Science / By Knud Jahnke

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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Apr 21 2026

Space Warps – Euclid DR1

Consortium, Science / By Tancrède Menard

Space Warps is back! Do you want to join forces with Euclid Consortium scientists and discover gravitational lenses that no human has ever seen before? We’re announcing the next Space Warps Citizen Science campaign with Euclid data – now previewing images from Data Release 1. Here is how to become part of the project.

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Mar 3 2026

Euclid and HST join forces to look at a Cat’s Eye

Consortium, ESA, Science, Telescope and instruments / By Knud Jahnke

Euclid covers a much larger area in every image compared to previous space telescopes, all while resolving details. The Hubble Space Telescope has a roughly 2x larger mirror than Euclid and can still resolve structures twice as fine, but over a much smaller area: It could in principle carry out Euclid’s Wide Survey, but it would take 100s of years instead of only six. So what happens when combining Hubble’s eye for detail and Euclid’s field of view? Something incredible is the result.

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Euclid and HST join forces to look at a Cat’s Eye Read More »

Nov 20 2025

Clouds, darkness, dust, … and light

Consortium, Science, Telescope and instruments / By Yuzheng

Just recently, in early November 2025, ESA released Euclid’s image of ‘LDN 1641’, an actively star-forming region in the ‘sword’ region of the constellation Orion. This region was observed by Euclid in near-infrared wavelengths early on in the mission, during a test for the spacecraft’s ability to orient itself in the sky: will the spacecraft get confused if it has very little information for orientation? We now added a ground-based image in visible light and created a comparison – a tale of young stars and clouds of dust, and the struggle for light trying to shine through strong absorption.

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Clouds, darkness, dust, … and light Read More »