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Galaxy Map

@galaxymap.bsky.social
643 followers 530 following 2.3K posts

The first accurate and detailed maps of the Milky Way and ways to promote and visualize them (including VR). Website: kevinjardine.dev Tip jar: tiptopjar.com/kevinjardine

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Galaxy Map @galaxymap.bsky.social · 1h
I asked Muse Code to set up a system to rotate a skybox in galactic coordinates and asked it to rotate to Betelgeuse as a check. To my surprise it knew that Betelgeuse was a red giant and checked its code by looking for reddish pixels at the rotation location. So progress in AI astronomy knowledge.
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Reposted by Galaxy Map
⭐ ᗰᗩᖇᛕ ᗩ. ǤᗩᖇᒪIᑕᛕ ⭐ @markgarlick.com · 12/10/2026
Wow. This is a real supernova remnant. I thought it was an artwork at first. The spherical symmetry is fab!
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Galaxy Map @galaxymap.bsky.social · 12/10/2026
I do understand the argument that AI proofs are often ugly. But that is nothing new. We heard the same complaint about the proof of the four colour theorem. It might even be the right time to try to formalize a bit more the concept of mathematical beauty and use it to guide AI proofs.
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Galaxy Map @galaxymap.bsky.social · 12/10/2026
that AI proofs are having a negative effect on math culture. This is not getting understood and is generating a negative reaction, which then gets a dismissive reaction from the mathematicians causing a worse counter reaction. So sad to see such an ugly debate about a field I studied and love.
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Galaxy Map @galaxymap.bsky.social · 12/10/2026
I am puzzled to see the mathematicians' reaction to AI generated proofs. I was expecting to see complaints that the proofs were incorrect or that the Lean formalization was incorrect or even that somehow the AI was not properly crediting relevant work by humans. But instead the complaint is ...
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Galaxy Map @galaxymap.bsky.social · 12/10/2026
Which view to cover is a complicated decision which depends on the credibility of teams A and B, the number of papers that support or do not support each side etc. Typically Wikipedia can't handle this decision especially as it may change over time.
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Galaxy Map @galaxymap.bsky.social · 12/10/2026
Very often Wikipedia only covers one of these papers, typically the one that got the most media coverage.
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Galaxy Map @galaxymap.bsky.social · 12/10/2026
There are many problems with Wikipedia sadly. One problem for science is the "one truth" model. Often science team A puts out a paper stating "X is true". A year after, science team B team puts out a paper saying "Y is true but X is not true". www.theguardian.com/technology/2...
theguardian.com
Is Wikipedia ‘deeply biased’? Sandi Toksvig says it is – so she’s backing a rival
Just 19% of the online encyclopedia’s biographies are of women. Is this because it’s edited by ‘mostly white, middle-aged, European men’, as the comedian claims?
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Galaxy Map @galaxymap.bsky.social · 10/10/2026
I'm curious about credible examples. I'm still skeptical about people overhyping AI (either for all the good people claim it can do or all the bad people claim it can do). As we know from rm -rf /* when people get access to technology they can always abuse it to do stupid things.
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Galaxy Map @galaxymap.bsky.social · 10/10/2026
But seriously, are you really forwarding messages from an antitech account devoted to spreading fear about Meta? Personally I have been skeptical about AI being overhyped but I like useful tech. After all this is an account all about science and technology.
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Galaxy Map @galaxymap.bsky.social · 09/10/2026
That is Muse. I am using Muse Code, a much more specialized AI agent that only has access to a single Unity project directory on my workstation.
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Galaxy Map @galaxymap.bsky.social · 09/10/2026
... for first time I have an AI agent that is actually saving me development time. It obviously is not like a human assistant. It wrote all the button labels backward initally and it took a few minutes to get it to "understand" what the problem was.
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Galaxy Map @galaxymap.bsky.social · 09/10/2026
I gave it some quite high level instructions and it delivered working buttons, the ability to toggle off the visibility of parts of the starship, change sky boxes etc. It has a good understanding of Unity and the various Meta VR SDKs so ...
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Galaxy Map @galaxymap.bsky.social · 09/10/2026
I have been trying out Meta Muse Code to help me develop a new virtual starship and so far I have been favourably impressed. I have provided the astronomy data, starship model I created in Blender, skyboxes, all images etc. I asked Muse Code to help me create a Star Trek control panel.
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Galaxy Map @galaxymap.bsky.social · 08/10/2026
Cool. Usually the creators of television shows are anonymous or barely known figures. That is not the case for Gene Roddenberry and Lucille Ball. I hope these figures do well.
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Galaxy Map @galaxymap.bsky.social · 08/10/2026
The movie asks for the source of Armstrong's extraordinary combination of intensity, concentration and bravery and argues that at least some of it was a form of protection against the grief he felt towards the death of his daughter.
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Galaxy Map @galaxymap.bsky.social · 08/10/2026
Arguably First Man does portray Armstrong as a hero but not a comic book one.
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Galaxy Map @galaxymap.bsky.social · 08/10/2026
Reminds me again of what a wonderful movie First Man is and the odd public response it got when it first came out. Maybe I'm cynical but I always thought movie viewers who like movies about people would like First Man but movie viewers who prefer movies about Marvel superheroes would not.
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Galaxy Map @galaxymap.bsky.social · 08/10/2026
I'm a Canadian but have never heard of this writer. Perhaps that confirms me as a cultural Philistine? 🤔 www.theguardian.com/books/2026/o...
theguardian.com
Anne Carson wins Nobel prize in literature 2026
Most prestigious literature prize goes to Canadian known for genre-crossing works such as Autobiography of Red
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Galaxy Map @galaxymap.bsky.social · 08/10/2026
Other sources say that although some Apollo systems used triple redundancy, the flight system used a task prioritization system instead. In any case, it had to deal successfully with a number of hardware errors.
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Galaxy Map @galaxymap.bsky.social · 08/10/2026
I think this is Margaret Hamilton's software in action. It had triple redundancy so despite the hardware glitches that generated the 1201 and 1202 alarms, the flight system did not crash and guided by Armstrong and Aldrin led to a successful landing. youtu.be/zfNhkYHrfj0?...
youtu.be
First Man (2018) - The landing scene
YouTube video by Mydriaze
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Galaxy Map @galaxymap.bsky.social · 08/10/2026
It says about 3600 objects including white dwarfs and brown dwarfs, within 20 parsecs. So I think that is meant to be complete for stars and brown dwarfs.
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Galaxy Map @galaxymap.bsky.social · 07/10/2026
Also love your hot star. Again nothing like the Sun (or Betelgeuse). Betelgeuse is a calm pussy cat compared to this thing: luiscalcada.com/luminous-blu...
luiscalcada.com
Luis Calcada - Luminous blue variable star
Luis Calçada data and science visualization artist. Music Producer.
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Galaxy Map @galaxymap.bsky.social · 07/10/2026
I notice that this paper uses ui.adsabs.harvard.edu/abs/2024ApJS... which is yet another catalog of nearby stars. I've seen nearby star catalogs going out now to 10, 20 and 25 parsecs (plus the Gaia Catalog of Nearby Stars going out to 100 parsecs but that does not try to be complete).
ui.adsabs.harvard.edu
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Galaxy Map @galaxymap.bsky.social · 07/10/2026
I love true all-sky surveys that use telescopes in both the northern and southern hemispheres. arxiv.org/abs/2610.07481
arxiv.org
High-Angular-Resolution Survey of Stars within 18 pc of the Sun: Part I
We present the rationale, design, methodology, and observational facilities of a high-angular-resolution imaging survey of stars within 18~pc of the Sun. Our comprehensive sample consists of 2047 star...
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Galaxy Map @galaxymap.bsky.social · 07/10/2026
I believe that the above more realistic image of Betelgeuse was commissioned by ESO: www.eso.org/public/image...
eso.org
A plume on Betelgeuse (artist’s impression)
A plume on Betelgeuse (artist’s impression)
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Galaxy Map @galaxymap.bsky.social · 06/10/2026
Real stars are various shades of blue, white and orange. Even red giants are not actually red.
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Galaxy Map @galaxymap.bsky.social · 06/10/2026
One of the frustrations I often hear from astronomers is how media illustrators often illustrate stars by taking a NASA image of the Sun and changing the colour. When in fact only G-type main sequence stars look like the Sun. And by the way they even get the Sun wrong by colouring it yellow.
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Galaxy Map @galaxymap.bsky.social · 06/10/2026
A real red giant star has an indistinct surface and lots of dust.
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Galaxy Map @galaxymap.bsky.social · 06/10/2026
Here's a famous image of Betelgeuse done by astronomers.
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Galaxy Map @galaxymap.bsky.social · 06/10/2026
Not great I would say. The trouble is that AI image generation systems know very little about astronomy and they make all stars look like variations of the Sun.
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Galaxy Map @galaxymap.bsky.social · 06/10/2026
I know many people really really hate AI images here but I admit that I was curious at how Meta Muse could handle a request for a Betelgeuse-like red giant star. Here's the result after I kept asking for more dust.
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Galaxy Map @galaxymap.bsky.social · 06/10/2026
I'm now up to about 50 people signed up for the Atlas of the Milky Way Kickstarter. Would still like many more before I launch it. Please sign up here: kevinjardine.dev/signup/ Would love your suggestions on how to promote this now that I have a nice profile page here: kevinjardine.dev/profile
kevinjardine.dev
Email Confirmation App
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Galaxy Map @galaxymap.bsky.social · 06/10/2026
I've updated my profile page with an endorsement from Anthony Brown, chair of the Gaia Mission Data Processing and Analysis Consortium: kevinjardine.dev/profile/
kevinjardine.dev
Atlas of the Milky Way Kickstarter profile
Explore the Milky Way with Kevin Jardine's detailed cartography.
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Galaxy Map @galaxymap.bsky.social · 06/10/2026
Not sure that Car OB1 is really the most massive OB association in our galaxy as we have only mapped OB associations out to 4 or 5 kpc. Still, an interesting article. arxiv.org/abs/2610.05192
arxiv.org
Spatio-temporal progression of star formation in the Carina OB1 association
The Carina OB1 association, harboring the famous Carina Nebula near its center, is the most massive, well-studied OB association in our Galaxy. Containing several massive star clusters with different ...
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Galaxy Map @galaxymap.bsky.social · 04/10/2026
Granted people here don't seem to hate the poor like they do in the United States.
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Galaxy Map @galaxymap.bsky.social · 04/10/2026
Well, I live here in the Netherlands and I think the mixed system works pretty well. In addition to private health insurance, wealthier people pay a special health tax to subsidize public health costs for the poor. Last time I went to emergency at my hospital, I had to wait for only 10 minutes.
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Galaxy Map @galaxymap.bsky.social · 03/10/2026
The prices charged by US health care providers seem more like extortion.
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Galaxy Map @galaxymap.bsky.social · 03/10/2026
Public health insurance advocates often forget that it needs two policies: a. a public option and b. tight regulations to reduce the cost of drugs and health services. The Netherlands has private insurance for most people but the system works because the government controls costs.
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Galaxy Map @galaxymap.bsky.social · 01/10/2026
I'm heading back to Leiden tomorrow but before that I took a nostalgic walk around Toronto.
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Galaxy Map @galaxymap.bsky.social · 29/09/2026
I've been having a great month with my father in Oshawa reading thirteenth century history and learned a tremendous amount. I have all the bits I need for a novel. And ended up with a strong dislike for Salimbene di Adam. What a pompous gossip he was. I plowed through his chronicle for a few gems.
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Galaxy Map @galaxymap.bsky.social · 29/09/2026
And this one on the famous K type multiple system 61 Cygni and a super Jupiter: arxiv.org/abs/2609.32893
arxiv.org
Worlds Next Door. V. A Candidate Solar System Scale Super-Jupiter in the 61 Cygni Binary System
We present new constraints on a candidate third companion in the 61 Cygni binary system-one of the closest neighbors to our solar system (3.5 pc), the first stars to have a measured parallax, and two ...
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Galaxy Map @galaxymap.bsky.social · 29/09/2026
There are *two* papers out on planets orbiting stars within 10 parsecs. This one on a rocky planet: arxiv.org/abs/2609.30552
arxiv.org
Hot Rocks Survey VI: An anomalously hot dayside for the rocky planet GJ 357 b
As part of the JWST Hot Rocks Survey, we analyzed a JWST/MIRI F1500W secondary-eclipse observation of GJ 357 b, a rocky exoplanet orbiting a nearby M dwarf. We also performed a new global analysis of ...
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Reposted by Galaxy Map
Chara @astrochara.bsky.social · 29/09/2026
Today's arXiv day went almost 6 hours past UTC midnight. I predicted it's going to be a monster. I was right. - Possible mechanism for variable He escape from LHS 1140 b - 2-ary eclipse+phase curve for TOI-2431 b - NEID Earth Twin Survey part 6 - TOI-125 trans. spec - TOI-210 b discovery
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Galaxy Map @galaxymap.bsky.social · 25/09/2026
A new Gaia subset with many accurate parameters crossmatched with 14 other surveys. There doesn't appear to be a top down map but very pretty HR and Kiel diagrams. arxiv.org/abs/2609.28652
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Galaxy Map @galaxymap.bsky.social · 24/09/2026
Puzzled by journalists comparing the Meta VR glasses to the Apple Vision Pro. Other than an external "puck" (which is quite different in design) the two devices have nothing in common. The Meta glasses do look a bit like the device journalists were *expecting* Apple to deliver which they never did.
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Galaxy Map @galaxymap.bsky.social · 24/09/2026
Amazing to think that when I bought my Ohio Scientific Superboard II in 1978, it was $400 (with the upgrade to 8K RAM!) or about $1800 today. The Meta VR glasses, which seem like tech from Star Trek, will be less than that when they arrive this spring.
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Galaxy Map @galaxymap.bsky.social · 24/09/2026
Despite the rumors, the new Meta VR glasses are not just for watching movies. They support the complete Quest gaming library (especially if you have or buy the optional controllers). We are living in the most exciting new tech era since I bought my first microcomputer in the 1970s. Saving my euros.
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Galaxy Map @galaxymap.bsky.social · 22/09/2026
In this famous clip, Humphrey Appleby explains why the UK really wants to be in the EU (and implicitly why Brexit was a disaster for British foreign policy). youtu.be/ZVYqB0uTKlE?...
youtu.be
Why the UK is in the EU
YouTube video by André Cunha
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Galaxy Map @galaxymap.bsky.social · 21/09/2026
Now there is an interesting euphemism: "metal-polluted". In other words trace elements left over after a red giant has eaten its planets before ejecting its outer layers and becoming a white dwarf. arxiv.org/abs/2609.22033
arxiv.org
Searching for Massive Remnant Planetary System Hosts with White Dwarf Gaia XP Spectra
Remnant planetary systems around massive white dwarfs ($M_{\rm WD} > 0.8\,{\rm M}_\odot$) are intrinsically rare and remain poorly characterized. As the evolutionary endpoints of intermediate-mass B- ...
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