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#ESAEuclid was launched 1000 days ago. 🥳

@science.esa.int has already released #Euclid's Q1 dataset, Q2 (in the Galactic Bulge) and ~1900 deg² extragalactic data in DR1 will follow later this year. All instruments are healthly, satellite is working fine.

🔭 🎉 🛰️

#science #space #ESA

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3d-printed model of the Euclid spacecraft at 1:64 scale, standing on an open hand.

3d-printed model of the Euclid spacecraft at 1:64 scale, standing on an open hand.

We also printed it scaled down by a factor 4, but this 1:64 scale version, while cute, is really at the limit of printability for the smallest parts.

#Euclid #ESAEuclid #ESA #astronomy #space #3dprinting #maker

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Side view of the Euclid model incl stand.

Side view of the Euclid model incl stand.

Scale is 1:16 (~30cm tall) for printing on any printer with a min. 200mm print bed.

Show us your models and tweaks with the hashtag #EuclidAtHome.

#ESAEuclid #ESA #space #astronomy #3dprinting

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Front view of a five colour printed Euclid model in white, gold, black silver, and blue.

Front view of a five colour printed Euclid model in white, gold, black silver, and blue.

Slicer software view of one of 13 print plates for a full Euclid model.

Slicer software view of one of 13 print plates for a full Euclid model.

Are interested in spacecraft models? Then you now have the chance to 3d-print your own #Euclid satellite! You can download all files for your personal version, including detailed assembly instructions:

www.euclid-ec.org/public/3d-mo...

#ESAEuclid #ESA #space #astronomy #3dprinting

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Good choice of ship: the MN Colibri already transported #JWST from the US to Kourou, and our #ESAEuclid telescope from Europe to Florida. Can recommend, would use again :-)

#astronomy #space #ESA #Euclid

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Zoom Video: Cat's Eye Nebula
Zoom Video: Cat's Eye Nebula YouTube video by HubbleWebbESA

Here's another combined view by #ESAEuclid + #Hubble of the Cat's Eye Nebula

www.youtube.com/watch?v=goIs...

#Euclid #ESA #NASA #astronomy #space

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The Cat's Eye Nebula as seen by Euclid. The nebula in the center is part of our Milky Way. Euclid sees beyond it, with tens of thousands of distant galaxies in the field behind the Cat's Eye.

The Cat's Eye Nebula as seen by Euclid. The nebula in the center is part of our Milky Way. Euclid sees beyond it, with tens of thousands of distant galaxies in the field behind the Cat's Eye.

We give some background in our consortium blog:

www.euclid-ec.org/euclid-hst-c...

#astronomy #ESAEuclid

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Preview
Two observatories, one cosmic eye Two observatories, one cosmic eye

When you combine wide field imaging of #ESAEuclid and smaller field but 2x higher resolution imaging by #HubbleSpaceTelescope the result will be stunning: a joint look at the Cat's Eyes Nebula, NGC 6543.

esahubble.org/images/potm2...

@science.esa.int

#astronomy #space #NASA #ESA #Euclid

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Do you want to get involved in Citizen Science? Here's a fascinating project by scientists from our consortium. This classification project will conclude soon, but there'll be more in the future.

#CitizenScience #astronomy #science #ESA #ESAEuclid #Euclid

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In 2025 there were 130 papers submitted to the publication board inside the @ec-euclid.bsky.social (up from 57 in 2024). 90 of them already on arXiv, the others from the last few weeks still in internal refereeing.

2026 will see #ESAEuclid Data Release 1.

#EuclidLeaks

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Yannick Mellier
Photo Credit: Jean Mouette / CNRS Images

Yannick Mellier Photo Credit: Jean Mouette / CNRS Images

Yannick Mellier, 1958–2025

www.euclid-ec.org/yannick-mell...

#ESAEuclid #astronomy #space #ESA

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Our #ESAEuclid is in @esa.int's "Highlights 2025". We think that's justified 😉

#astronomy #space

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Including our favourite mission, who would have thought, #ESAEuclid 😀

#space #astronomy #cosmology #science #Euclid

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Lessons from the November 2025 solar storm

Not only #ESAEuclid saw the recent massive solar proton and X-ray outbreaks. Some of @esa.int's other sats actually did science with it:

#astronomy #space

www.esa.int/Space_Safety...

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Clouds, darkness, dust, … and light A space mission to map the Dark Universe

We also created a viewer tool for the Dark Cloud image from Euclid and in the visible, and 2MASS in the background – for you to zoom and pan around.

Here's the background and access to all comparison sliders and tools:

www.euclid-ec.org/clouds-darkn...

#ESAEuclid #astronomy #space #Euclid

🧵

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Comparison of the same cutout of the Dark Cloud image as seen by 2MASS (left) and Euclid NISP (right).

Comparison of the same cutout of the Dark Cloud image as seen by 2MASS (left) and Euclid NISP (right).

We asked amateur astronomy colleagues to create for us a colour-image in visible light of the same region. They delivered!

Also, we added a comparison to 2MASS, the so-far go-to near-infrared all-sky survey.

Let's say ... there are differences.

#ESA #ESAEuclid #astronomy #space

🧵

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Infrared vs Optical: Euclid reveals what lies within and behind the Dark Cloud
Infrared vs Optical: Euclid reveals what lies within and behind the Dark Cloud YouTube video by Euclid Consortium

Do you remember the 'Dark Cloud' image of LDN 1641 from #ESAEuclid that was released by @science.esa.int two weeks ago? We now added a comparison to a ground-based image in visible light:

www.youtube.com/watch?v=MlmQ...

#ESA #Euclid #astronomy #space

🧵

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Credits:

VIS images. Konrad Kuijken / Euclid Consortium / ESA.

Northern lights time-lapse: Tian Li/EC.

SOHO imagery: NASA/ESA.

#ESAEuclid #Euclid #EuclidUK #Aurora #AuroraBorealis #NorthernLights #SpaceWeather #Astronomy #Cosmology #Space #Telescope #DarkMatter #DarkEnergy #Universe

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Snapshot of a part of Euclid VIS detectors, almost saturated with cosmic ray hits.

Snapshot of a part of Euclid VIS detectors, almost saturated with cosmic ray hits.

Those were beautiful #aurorae in the past days. A solar storm brought a lot of protons to Earth. Not only to Earth but also to #ESAEuclid – but does #Euclid notice? Oh yes.

www.euclid-ec.org/here-comes-t...

#ESA #Sun #SpaceWeather #space

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And now the protons are coming in. Whow!

(Of course, #ESAEuclid has a mode for dealing with so many protons. In case of doubt it just goes into some hold position and only carries on after that. All fine.)

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38C3 - Euclid, das Weltraumteleskop - 180 Millionen Galaxien sind ein guter Anfang
38C3 - Euclid, das Weltraumteleskop - 180 Millionen Galaxien sind ein guter Anfang YouTube video by media.ccc.de

Let me point you to a public talk – that has a video recording – to show a bit more of what we saw in early #ESAEuclid data.

If your German isn't up to speed then you might have to add auto-dubbed subtitles, sorry!

youtu.be/2x0W2ZggU1M?...

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Let me tell you, our officially-not-an-X-ray-telescope #ESAEuclid did notice this flare. Very much so. A gazillion cosmic ray hits, plus a shadow of hardware where the instruments aren't fully X-ray shielded.

I mean this was the 39th (?) strongest flare in 30 years.

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Yes, what _are_ the lasers for, @eso.org and why doesn't #ESAEuclid have any!? 😠

(Actually the first part is very nicely explained in the video – and also tells why Euclid doesn't need any.) 😀

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Home - Working with Euclid Q1: from Data Access to Science - Cosmos 3 future 0

Registration deadline is 9. November!

Attendance is free, no attendance fee (just cover travel and lodging).

Details and registration here:

www.cosmos.esa.int/web/working-...

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#ESAEuclid #Astronomy #ESA #Space

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Banner "Working with Euclid Q1: from Data Access to Science Workshop, 1-3 December 2025, ESAC, Madrid, Spain

Banner "Working with Euclid Q1: from Data Access to Science Workshop, 1-3 December 2025, ESAC, Madrid, Spain

Reminder: @science.esa.int is hosting a workshop "Working with #Euclid Q1: from Data Access to Science" in a hybrid format at ESAC, Madrid, Spain, and online – from 1.-3. December 2025.

This event will bring together researchers with + without prior experience using #ESAEuclid data.

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#ESA 🔭

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Credit: ESA/Euclid/Euclid Consortium/NASA, image processing by M. Schirmer (MPIA, Heidelberg)

#ESAEuclid #ESA #DarkCloud #cosmology #astronomy #space #science #astrophysics #stem

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#ESAEuclid #ESA #DarkCloud #cosmology #astronomy #space #science #astrophysics #stem

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Euclid peers through a dark cloud’s dusty veil

Mentre indaga sulla natura dell'Universo oscuro, #ESAEuclid fornisce anche osservazioni come questa, che consentono la ricerca in diversi campi dell'astronomia.

www.esa.int/ESA_Multimed...

@science.esa.int

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The focus of the image is a portion of LDN 1641, an interstellar nebula in the constellation of Orion. In this view, a deep-black background is sprinkled with a multitude of dots (stars) of different sizes and shades of bright white. Across the sea of stars, a web of fuzzy tendrils and ribbons in varying shades of orange and brown rises from the bottom of the image towards the top-right like thin coils of smoke.

The focus of the image is a portion of LDN 1641, an interstellar nebula in the constellation of Orion. In this view, a deep-black background is sprinkled with a multitude of dots (stars) of different sizes and shades of bright white. Across the sea of stars, a web of fuzzy tendrils and ribbons in varying shades of orange and brown rises from the bottom of the image towards the top-right like thin coils of smoke.

#ESAEuclid peers through a dark cloud’s dusty veil to reveal a place teeming with very young stars ✨

While investigating the nature of the dark Universe, Euclid is also delivering observations such as this one that enable research in different fields of astronomy 👉 www.esa.int/ESA_Multimed... 🔭

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Des nouvelles de la mission #ESAEuclid: nébuleuse, séquence morphologique des galaxies et 7 nouvelles publications sur les premières données publiques!

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