ELSA: Euclid Legacy Science Advanced analysis tools
@elsa-euclid.bsky.social
Pushing the boundaries of spectroscopy with the European Space Agency's Euclid space telescope. Account run by @stephenserjeant.bsky.social and the ELSA team https://elsa-euclid.github.io/
Reposted by ELSA: Euclid Legacy Science Advanced analysis tools
We followed up #ESAEuclid's near-infrared image of the Dark Cloud LDN 1641 with a comparison to the NIR 2MASS survey, and to a bespoke ground-based image in visible light.
Here's the comparison including a tool to experiment yourself:
www.euclid-ec.org/clouds-darkn...
#ESA #space #science 🔭
Here's the comparison including a tool to experiment yourself:
www.euclid-ec.org/clouds-darkn...
#ESA #space #science 🔭
November 22, 2025 at 6:26 PM
We followed up #ESAEuclid's near-infrared image of the Dark Cloud LDN 1641 with a comparison to the NIR 2MASS survey, and to a bespoke ground-based image in visible light.
Here's the comparison including a tool to experiment yourself:
www.euclid-ec.org/clouds-darkn...
#ESA #space #science 🔭
Here's the comparison including a tool to experiment yourself:
www.euclid-ec.org/clouds-darkn...
#ESA #space #science 🔭
Beautiful comparison of @ec-euclid.bsky.social's infrared view of an interstellar dark cloud, compared to what we see in optical light 🧪🔭 www.youtube.com/watch?v=MlmQ...
Infrared vs Optical: Euclid reveals what lies within and behind the Dark Cloud
YouTube video by Euclid Consortium
www.youtube.com
November 20, 2025 at 4:20 PM
Beautiful comparison of @ec-euclid.bsky.social's infrared view of an interstellar dark cloud, compared to what we see in optical light 🧪🔭 www.youtube.com/watch?v=MlmQ...
wow....
Remember that lovely aurora last week?
Well...um...this is what Euclid saw... 😱
🧵
Well...um...this is what Euclid saw... 😱
🧵
November 20, 2025 at 4:18 PM
wow....
The solar flare that caused aurora here on Earth a few days ago, also caused a blizzard of particle impacts on @ec-euclid.bsky.social's detectors. Very nice explainer by @james4cet.bsky.social www.euclid-ec.org/here-comes-t... 🧪🔭
Here Comes the Sun…
A space mission to map the Dark Universe
www.euclid-ec.org
November 20, 2025 at 4:17 PM
The solar flare that caused aurora here on Earth a few days ago, also caused a blizzard of particle impacts on @ec-euclid.bsky.social's detectors. Very nice explainer by @james4cet.bsky.social www.euclid-ec.org/here-comes-t... 🧪🔭
Blog post by @ec-euclid.bsky.social PhD student Ruby Pearce-Casey from her #DISCnet industry placement with #KeenAI, deploing her AI skills to new areas. Earlier, Ruby made a breakthrough in finding strong gravitational lenses in Euclid imaging using machine learning keen-ai.com/blog/anticip... 🧪🔭
Anticipating Geomagnetic Storms: Reflections at the Halfway Point (Part 2)
Keen AI and National Grid secure Ofgem funding to develop FoSMO, the UK’s first shared AI vision model to transform electricity network asset management.
keen-ai.com
November 13, 2025 at 6:36 PM
Blog post by @ec-euclid.bsky.social PhD student Ruby Pearce-Casey from her #DISCnet industry placement with #KeenAI, deploing her AI skills to new areas. Earlier, Ruby made a breakthrough in finding strong gravitational lenses in Euclid imaging using machine learning keen-ai.com/blog/anticip... 🧪🔭
Reposted by ELSA: Euclid Legacy Science Advanced analysis tools
Very nice blog post by my grad student Ruby Pearce-Casey (who's done excellent @ec-euclid.bsky.social work on finding strong gravitational lenses), from her #DISCnet industry placement with #KeenAI 🧪🔭 keen-ai.com/blog/anticip...
Anticipating Geomagnetic Storms: Reflections at the Halfway Point (Part 2)
Keen AI and National Grid secure Ofgem funding to develop FoSMO, the UK’s first shared AI vision model to transform electricity network asset management.
keen-ai.com
November 13, 2025 at 6:33 PM
Very nice blog post by my grad student Ruby Pearce-Casey (who's done excellent @ec-euclid.bsky.social work on finding strong gravitational lenses), from her #DISCnet industry placement with #KeenAI 🧪🔭 keen-ai.com/blog/anticip...
Reposted by ELSA: Euclid Legacy Science Advanced analysis tools
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.
I mean this was the 39th (?) strongest flare in 30 years.
November 11, 2025 at 7:05 PM
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.
I mean this was the 39th (?) strongest flare in 30 years.
Reposted by ELSA: Euclid Legacy Science Advanced analysis tools
Whoa. The scale of this thing.
That blast wave radiating away from the flare location is impressive. Esp. when you think about the size of the Earth in comparison.
It’s so very near that we live so close to a star and can watch its behaviour and activity.
A star and it’s just right there!
That blast wave radiating away from the flare location is impressive. Esp. when you think about the size of the Earth in comparison.
It’s so very near that we live so close to a star and can watch its behaviour and activity.
A star and it’s just right there!
Here is the X5.1 flare in straight EUV light. We are looking at the 193 Å "gold" filter here. The flare is the bright flash, and immediately, you can see a giant blast wave racing through the Sun's corona, lifting tons of plasma into space as an Earth-directed CME.
November 11, 2025 at 6:52 PM
Whoa. The scale of this thing.
That blast wave radiating away from the flare location is impressive. Esp. when you think about the size of the Earth in comparison.
It’s so very near that we live so close to a star and can watch its behaviour and activity.
A star and it’s just right there!
That blast wave radiating away from the flare location is impressive. Esp. when you think about the size of the Earth in comparison.
It’s so very near that we live so close to a star and can watch its behaviour and activity.
A star and it’s just right there!
Many new @ec-euclid.bsky.social papers have just been released too, including this beautiful morphological tuning fork of galaxies 🔭🧪 This page is interactive - have a play! www.euclid-ec.org/euclid-morph...
November 7, 2025 at 5:55 PM
Many new @ec-euclid.bsky.social papers have just been released too, including this beautiful morphological tuning fork of galaxies 🔭🧪 This page is interactive - have a play! www.euclid-ec.org/euclid-morph...
Some marvellous @ec-euclid.bsky.social press releases just out! A beautiful image of a shimmering infrared dark cloud observed with Euclid www.esa.int/ESA_Multimed...
November 7, 2025 at 5:51 PM
Some marvellous @ec-euclid.bsky.social press releases just out! A beautiful image of a shimmering infrared dark cloud observed with Euclid www.esa.int/ESA_Multimed...
Rather lovely blog marking the second anniversary of the launch of @ec-euclid.bsky.social, by @knudjahnke.bsky.social www.euclid-ec.org/second-anniv... 🔭🧪
Second anniversary of Euclid in space
A space mission to map the Dark Universe
www.euclid-ec.org
July 2, 2025 at 5:04 PM
Rather lovely blog marking the second anniversary of the launch of @ec-euclid.bsky.social, by @knudjahnke.bsky.social www.euclid-ec.org/second-anniv... 🔭🧪
"Almost dark galaxy" discovered with the help of the @ec-euclid.bsky.social archive - press release in English 🧪🔭 www.statistics.utoronto.ca/news/candida...
Candidate Dark Galaxy-2: U of T researchers shine new light on the universe’s darkest realms.
www.statistics.utoronto.ca
June 16, 2025 at 4:19 PM
"Almost dark galaxy" discovered with the help of the @ec-euclid.bsky.social archive - press release in English 🧪🔭 www.statistics.utoronto.ca/news/candida...
New Euclid archive result: discovery of an "almost dark galaxy" with four globular clusters. Wonderful to see the community make great use of the @ec-euclid.bsky.social archive! Press release (in German): 🔭🧪 www.uibk.ac.at/de/newsroom/...
„Dunkle Galaxie“ im Perseushaufen entdeckt
Ein internationales Forschungsteam unter Beteiligung von Francine Marleau von der Universität Innsbruck hat eine nahezu unsichtbare Galaxie im Perseus-Galaxienhaufen identifiziert. Entdeckt wurde die ...
www.uibk.ac.at
June 16, 2025 at 4:13 PM
New Euclid archive result: discovery of an "almost dark galaxy" with four globular clusters. Wonderful to see the community make great use of the @ec-euclid.bsky.social archive! Press release (in German): 🔭🧪 www.uibk.ac.at/de/newsroom/...
A short 🧵 on some lovely Euclid-relevant Sixty Second Adventures, commissioned earlier by ELSA project members and narrated by the excellent David Mitchell 🧪🔭
The Big Bang:
www.youtube.com/watch?v=6bPL...
The Big Bang:
www.youtube.com/watch?v=6bPL...
The Big Bang - 60 Second Adventures in Astronomy (1/14)
YouTube video by OpenLearn from The Open University
www.youtube.com
June 16, 2025 at 9:20 AM
A short 🧵 on some lovely Euclid-relevant Sixty Second Adventures, commissioned earlier by ELSA project members and narrated by the excellent David Mitchell 🧪🔭
The Big Bang:
www.youtube.com/watch?v=6bPL...
The Big Bang:
www.youtube.com/watch?v=6bPL...
The mathematical poet Piet Hein wrote this lovely poem about Euclid, titled Parallelism 🧪🔭 /cc @ec-euclid.bsky.social
"Lines that are parallel
meet at Infinity!"
Euclid repeatedly,
heatedly,
urged.
Until he died
and so reaching that vicinity
in it he
found that the damned things diverged.
"Lines that are parallel
meet at Infinity!"
Euclid repeatedly,
heatedly,
urged.
Until he died
and so reaching that vicinity
in it he
found that the damned things diverged.
June 16, 2025 at 9:10 AM
The mathematical poet Piet Hein wrote this lovely poem about Euclid, titled Parallelism 🧪🔭 /cc @ec-euclid.bsky.social
"Lines that are parallel
meet at Infinity!"
Euclid repeatedly,
heatedly,
urged.
Until he died
and so reaching that vicinity
in it he
found that the damned things diverged.
"Lines that are parallel
meet at Infinity!"
Euclid repeatedly,
heatedly,
urged.
Until he died
and so reaching that vicinity
in it he
found that the damned things diverged.
On the other microblogging site (no, not that one, the _other_ other microblogging site), the astrodon.social server is being decommissioned, so we've migrated our Mastodon account and moved most of its content over to mastodon.social/@elsa_euclid . Come and say hello! 🧪🔭
ELSA - Euclid (@[email protected])
59 Posts, 30 Following, 75 Followers · ELSA: Euclid Legacy Science Advanced analysis tools, pushing the boundaries of spectroscopy with the European Space Agency's Euclid space telescope
mastodon.social
June 9, 2025 at 2:59 PM
On the other microblogging site (no, not that one, the _other_ other microblogging site), the astrodon.social server is being decommissioned, so we've migrated our Mastodon account and moved most of its content over to mastodon.social/@elsa_euclid . Come and say hello! 🧪🔭
We're planning a citizen science project for volunteers to rummage the spectroscopic data from the ESA Euclid mission. Watch this space (metaphorically, and in time, literally) @science.esa.int @ec-euclid.bsky.social 🧪🔭
Loving the Euclid @ec-euclid.bsky.social galaxy explorer tool by Mike Walmsley. Thanks to the @galaxyzoo.org volunteers for all this work! euclid.streamlit.app 🔭🧪
GZ Euclid
This app was built in Streamlit! Check it out and visit https://streamlit.io for more awesome community apps. 🎈
euclid.streamlit.app
March 24, 2025 at 2:24 PM
We're planning a citizen science project for volunteers to rummage the spectroscopic data from the ESA Euclid mission. Watch this space (metaphorically, and in time, literally) @science.esa.int @ec-euclid.bsky.social 🧪🔭
Reposted by ELSA: Euclid Legacy Science Advanced analysis tools
The new EULICD data release is AMAZING! 🔭
Here's a before / after of a random galaxy I found in one of the new images, comparing against the Digitized Sky Survey.
I highly recommend taking a look around on ESA Sky - it's fun! Link: sky.esa.int/esasky/?targ...
Here's a before / after of a random galaxy I found in one of the new images, comparing against the Digitized Sky Survey.
I highly recommend taking a look around on ESA Sky - it's fun! Link: sky.esa.int/esasky/?targ...
March 19, 2025 at 11:14 AM
The new EULICD data release is AMAZING! 🔭
Here's a before / after of a random galaxy I found in one of the new images, comparing against the Digitized Sky Survey.
I highly recommend taking a look around on ESA Sky - it's fun! Link: sky.esa.int/esasky/?targ...
Here's a before / after of a random galaxy I found in one of the new images, comparing against the Digitized Sky Survey.
I highly recommend taking a look around on ESA Sky - it's fun! Link: sky.esa.int/esasky/?targ...
Reposted by ELSA: Euclid Legacy Science Advanced analysis tools
Okay, we’re sorry…it’s a school night, we know…
But, stick with us, because we’ve got a case of the zoomies! 🔍
Here’s an area of Deep Field South zoomed in 16x 🌌 (1/3)
But, stick with us, because we’ve got a case of the zoomies! 🔍
Here’s an area of Deep Field South zoomed in 16x 🌌 (1/3)
![LEFT - Image description: A sea of stars and galaxies sparkle against a black background. Several galaxies can be identified by their elongated shape and/or spiral arms. Some galaxies are seen edge-on while one prominent spiral galaxy at the bottom centre is seen face-on. At the far right, between the middle and top of the image, are some interacting galaxies. Galaxy clusters are also seen, in particular near bottom centre, where features smeared into arcs represent gravitational lensing. The brightest stars in the image have diffraction spikes.]](https://cdn.bsky.app/img/feed_thumbnail/plain/did:plc:iphxf5zrpaszglsl4o7w6sts/bafkreihzhue4yyjz3lvmxtti7wiqy3xsj7gnnsst4yidzv7t2tchfkc2zu@jpeg)
![RIGHT - Image description: A sea of stars and galaxies sparkle against a black background. Several galaxies can be identified by their elongated shape and/or spiral arms. Some galaxies are seen edge-on while one prominent spiral galaxy at the bottom centre is seen face-on. At the far right, between the middle and top of the image, are some interacting galaxies. Galaxy clusters are also seen, in particular near bottom centre, where features smeared into arcs represent gravitational lensing. The brightest stars in the image have diffraction spikes.]](https://cdn.bsky.app/img/feed_thumbnail/plain/did:plc:iphxf5zrpaszglsl4o7w6sts/bafkreie2frmpqe62cztq5ytjbs7ivoyaka76hylwqb2pjqmheukf7ebvpy@jpeg)
March 19, 2025 at 9:02 PM
Okay, we’re sorry…it’s a school night, we know…
But, stick with us, because we’ve got a case of the zoomies! 🔍
Here’s an area of Deep Field South zoomed in 16x 🌌 (1/3)
But, stick with us, because we’ve got a case of the zoomies! 🔍
Here’s an area of Deep Field South zoomed in 16x 🌌 (1/3)
Reposted by ELSA: Euclid Legacy Science Advanced analysis tools
We’re delighted to share that Galaxy Zoo (and you!) are featured in the first Euclid data release announced today! Read more: blog.galaxyzoo.org/2025/03/19/g... 🔭
Galaxy Zoo featured in first Euclid data release!
We’re delighted to share that Galaxy Zoo (and you!) are featured in the first Euclid data release announced today! Back in August 2024, we launched an intensive Euclid campaign where 9,976 of…
blog.galaxyzoo.org
March 19, 2025 at 4:15 PM
We’re delighted to share that Galaxy Zoo (and you!) are featured in the first Euclid data release announced today! Read more: blog.galaxyzoo.org/2025/03/19/g... 🔭
Reposted by ELSA: Euclid Legacy Science Advanced analysis tools
Thank you @ec-euclid.bsky.social consortium scientists for your hard work preparing these data & congratulations to all teams on the release, phenomena science productivity & innovative inclusion of nearly 10,000 citizen science volunteers in this exciting milestone @science.esa.int @esa.int
With today’s #Q1Release, we get a preview of #ESAEuclid’s three Deep Fields: North, South and Fornax. 🤩
The location of the Deep Fields can be seen as the yellow patches on this all-sky view of ESA Gaia’s star map from its second data release in 2018, and ESA Planck’s dust map from 2014. (1/3)
The location of the Deep Fields can be seen as the yellow patches on this all-sky view of ESA Gaia’s star map from its second data release in 2018, and ESA Planck’s dust map from 2014. (1/3)
March 19, 2025 at 1:18 PM
Thank you @ec-euclid.bsky.social consortium scientists for your hard work preparing these data & congratulations to all teams on the release, phenomena science productivity & innovative inclusion of nearly 10,000 citizen science volunteers in this exciting milestone @science.esa.int @esa.int
Reposted by ELSA: Euclid Legacy Science Advanced analysis tools
Direct links to #Euclid #ESASky:
Euclid Deep Field South: sky.esa.int/esasky/?hide...
Euclid Deep Field North: sky.esa.int/esasky/?hide...
Euclid Deep Field Fornax: sky.esa.int/esasky/?targ...
#astronomy #space @esa.int
2/2
Euclid Deep Field South: sky.esa.int/esasky/?hide...
Euclid Deep Field North: sky.esa.int/esasky/?hide...
Euclid Deep Field Fornax: sky.esa.int/esasky/?targ...
#astronomy #space @esa.int
2/2
ESASky 7.3.1
ESASky is an application that allows you to visualise and download public astronomical data from space-based missions.
sky.esa.int
March 19, 2025 at 12:06 PM
Direct links to #Euclid #ESASky:
Euclid Deep Field South: sky.esa.int/esasky/?hide...
Euclid Deep Field North: sky.esa.int/esasky/?hide...
Euclid Deep Field Fornax: sky.esa.int/esasky/?targ...
#astronomy #space @esa.int
2/2
Euclid Deep Field South: sky.esa.int/esasky/?hide...
Euclid Deep Field North: sky.esa.int/esasky/?hide...
Euclid Deep Field Fornax: sky.esa.int/esasky/?targ...
#astronomy #space @esa.int
2/2
Reposted by ELSA: Euclid Legacy Science Advanced analysis tools
If you want to spend some quality time with #Euclid data, you can use "ESA Sky", which allows everyone to browse public data, pan, zoom, and look around. All in full colour galore, and full resolution.
#astronomy #space @esa.int
1/2
#astronomy #space @esa.int
1/2
March 19, 2025 at 12:06 PM
If you want to spend some quality time with #Euclid data, you can use "ESA Sky", which allows everyone to browse public data, pan, zoom, and look around. All in full colour galore, and full resolution.
#astronomy #space @esa.int
1/2
#astronomy #space @esa.int
1/2
Reposted by ELSA: Euclid Legacy Science Advanced analysis tools
The @openuniversity.bsky.social has a nice news article on the @ec-euclid.bsky.social @eucliduk.bsky.social data release today, including some breakthrough work on lens discovery done by my grad student Ruby Pearce-Casey 🧪🔭 www.open.ac.uk/blogs/news/s...
The Open University
www.open.ac.uk
March 19, 2025 at 12:08 PM
The @openuniversity.bsky.social has a nice news article on the @ec-euclid.bsky.social @eucliduk.bsky.social data release today, including some breakthrough work on lens discovery done by my grad student Ruby Pearce-Casey 🧪🔭 www.open.ac.uk/blogs/news/s...
A nice write-up by @theguardian.com on the @ec-euclid.bsky.social data release, including some quotes on the avalanche of gravitational lenses by @stephenserjeant.bsky.social 🧪🔭 www.theguardian.com/science/2025...
Scientists hail ‘avalanche of discoveries’ from Euclid space telescope
Data from European Space Agency’s mission has allowed researchers to create detailed catalogue of 380,000 galaxies
www.theguardian.com
March 19, 2025 at 11:42 AM
A nice write-up by @theguardian.com on the @ec-euclid.bsky.social data release, including some quotes on the avalanche of gravitational lenses by @stephenserjeant.bsky.social 🧪🔭 www.theguardian.com/science/2025...