Publication

Euclid’s view of the ‘Morphological Tuning Fork’ of galaxy classifications

Consortium, ESA, Publication, Science / By

Text by Louis Quilley, Francine Marleau, Knud Jahnke

In March 2025 ESA and the Euclid Consortium released the first 63 square degrees of calibrated Euclid science images and catalogues, the Q1 release. At the same time, a set of descriptive technical articles and first scientific papers were released to the public. A second set of publications is now ready and has just been released – the EC issued a press release on this.

We have been using this occasion to dip into the more than 20 million galaxies observed for the Q1 release to re-construct a very classical display of extragalactic astronomy: the so-called ‘Morphological Tuning Fork’ – as seen by Euclid.

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Euclid’s view of the ‘Morphological Tuning Fork’ of galaxy classificationsRead More »

Euclid’s view of the ‘Morphological Tuning Fork’ of galaxy classifications Read More »

Euclid finds complete Einstein Ring in NGC galaxy

Consortium, ESA, Publication, Science / By

Gravitational lenses are rare in the sky – galaxies bending the light-paths of light from other galaxies behind them to form distorted or even multiple images. Even rarer is a perfect alignment of the two galaxies with us, the obervers, with the light being bent into a so-called Einstein Ring. And the rarest case was now observed by Euclid: this happening in an extremely nearby NGC galaxy.

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Euclid finds complete Einstein Ring in NGC galaxyRead More »

Euclid finds complete Einstein Ring in NGC galaxy Read More »

ESA Euclid Horsehead Nebula. Hat by freepik.com

Euclid in 2024 and what’s to come in 2025

Consortium, Publication, Science / By

What an exciting year this was for Euclid and the Euclid Consortium! In February Euclid’s surveys have officially started, the first 14 ‘Early Release Observation’ outreach and early science images have been made public, and now the consortium and ESA are gearing up for the first ‘Q1’ data release of 53 deg² to the world.

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Euclid in 2024 and what’s to come in 2025Read More »

Euclid in 2024 and what’s to come in 2025 Read More »

Euclid Reference Publications: the Euclid Mission Overview

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

Euclid is a complex mission, consisting of a spacecraft and scientific instruments, a massive cosmological simulation, and large and complex data processing segment to turn instrumental data into scientific meaning. Now, one year after launch, the Euclid Consortium has published a set of five reference papers, providing both the scientific background and an up to date description of the instruments and simulations. Paper 1 (Euclid. I. Overview of the Euclid mission, Euclid Collaboration: Mellier et al. 2024) is giving a full overview of the Euclid mission after launch, ranging from the overall background, the satellite and instruments, the surveys, and finally introduces both the cosmology diagnostics as well as astronomy projects envisioned with Euclid.

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Euclid Reference Publications: the Euclid Mission OverviewRead More »

Euclid Reference Publications: the Euclid Mission Overview Read More »

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