Consortium

Clouds, darkness, dust, … and light

Consortium, Science, Telescope and instruments / By

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 lightRead More »

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

Here Comes the Sun…

Consortium, Telescope and instruments / By

Were you lucky enough to see the aurora earlier this week? Stronger than usual solar activity recently gave many people across the world a chance to see this spectacular light show – the result of eruptions of particles from the Sun travelling towards Earth and interacting with our planet’s atmosphere. But how was Euclid affected by this space weather…?

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Here Comes the Sun…Read More »

Here Comes the Sun… Read More »

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 »

Second anniversary of Euclid in space

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

It was a hot morning at Cape Canaveral in Florida, on July 1st, 2023, two years ago today. It was the first morning of the 3rd quarter of the year, the earliest possible launch day for Euclid. Late at night there had been some last minute work on the launcher and at 3AM the rocket apparently had still been lying horizontally, but a few hours later it could be seen standing upright with Euclid on top, sheltered by an ESA- and Euclid-themed fairing. The launch was on!

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Second anniversary of Euclid in spaceRead More »

Second anniversary of Euclid in space Read More »

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