ESA

EGBS Banner

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.

…

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

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

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

Consortium, ESA, Science, Telescope and instruments / By

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.

…

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

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

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

Consortium, ESA, Publication, Science / By

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.

…

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!

…

Second anniversary of Euclid in spaceRead More »

Second anniversary of Euclid in space Read More »

Scroll to Top